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Freeciv-Web Server Options


aifill - Limited number of AI players

If set to a positive value, then AI players will be automatically
created or removed to keep the total number of players at this amount.
As more players join, these AI players will be replaced. When set to
zero, all AI players will be removed.

Level: Vital.
Category: Internal.

Minimum: 0, Default: 5, Maximum: 150

Value set to 7


airliftingstyle - Airlifting style

This setting affects airlifting units between cities. It can be a set
of the following values:
- "Allows units to be airlifted from allied cities" (FROM_ALLIES).
- "Allows units to be airlifted to allied cities" (TO_ALLIES).
- "Unlimited units from source city" (SRC_UNLIMITED): note that
airlifting from a city doesn't reduce the airlifted counter, but still
needs at least 1.
- "Unlimited units to destination city" (DEST_UNLIMITED): note that
airlifting to a city doesn't reduce the airlifted counter, and doesn't
need any.

Level: Situational.
Category: Military.

Possible values (option can take any number of these):

  • FROM_ALLIES: "Allows units to be airlifted from allied cities"

  • TO_ALLIES: "Allows units to be airlifted to allied cities"

  • SRC_UNLIMITED: "Unlimited units from source city"

  • DEST_UNLIMITED: "Unlimited units to destination city"

    Default: empty value


    allowtake - Players that users are allowed to take

    This should be a string of characters, each of which specifies a type
    or status of a civilization (player).
    Clients will only be permitted to take or observe those players which
    match one of the specified letters. This only affects future uses of
    the "take" or "observe" commands; it is not retroactive. The
    characters and their meanings are:
        o,O = Global observer
        b   = Barbarian players
        d   = Dead players
        a,A = AI players
        h,H = Human players
    The first description on this list which matches a player is the one
    which applies. Thus 'd' does not include dead barbarians, 'a' does not
    include dead AI players, and so on. Upper case letters apply before
    the game has started, lower case letters afterwards.
    Each character above may be followed by one of the following numbers
    to allow or restrict the manner of connection:
    (none) = Controller allowed, observers allowed, can displace
    connections. (Displacing a connection means that you may take over a
    player, even when another user already controls that player.)
         1 = Controller allowed, observers allowed, can't displace
    connections;
         2 = Controller allowed, no observers allowed, can displace
    connections;
         3 = Controller allowed, no observers allowed, can't displace
    connections;
         4 = No controller allowed, observers allowed

    Level: Rare.
    Category: Networking.

    Default: "HAhadOo"


    alltemperate - All the map is temperate

    If this setting is enabled, the temperature will be equivalent
    everywhere on the map. As a result, the poles won't be generated.

    Level: Rare.
    Category: Geological.

    Default: disabled


    animals - Amount of animals

    Amount of animals initially created to terrains defined for them in
    the ruleset. The server variable's scale is animals per thousand
    tiles.

    Level: Vital.
    Category: Geological.

    Minimum: 0, Default: 20, Maximum: 500


    aqueductloss - Percentage food lost when city can't grow

    If a city would expand, but it can't because it lacks some
    prerequisite (traditionally an Aqueduct or Sewer System), this is the
    base percentage of its foodbox that is lost each turn; the penalty may
    be reduced by buildings or other circumstances, depending on the
    ruleset.

    Level: Rare.
    Category: Economic.

    Minimum: 0, Default: 0, Maximum: 100


    autoattack - Turn on/off server-side autoattack

    If set to on, units with moves left will automatically consider
    attacking enemy units that move adjacent to them.

    Level: Situational.
    Category: Military.

    Default: disabled


    autosaves - Which savegames are generated automatically

    This setting controls which autosave types get generated:
    - "New turn" (TURN): Save when turn begins, once every 'saveturns'
    turns.
    - "Game over" (GAMEOVER): Final save when game ends.
    - "No player connections" (QUITIDLE): Save before server restarts due
    to lack of players.
    - "Server interrupted" (INTERRUPT): Save when server quits due to
    interrupt.
    - "Timer" (TIMER): Save every 'savefrequency' minutes.

    Level: Vital.
    Category: Internal.
    Can only be used in server console.

    Possible values (option can take any number of these):

  • TURN: "New turn"

  • GAMEOVER: "Game over"

  • QUITIDLE: "No player connections"

  • INTERRUPT: "Server interrupted"

  • TIMER: "Timer"

    Default: "New turn", "Game over", "No player connections", and "Server interrupted" (TURN|GAMEOVER|QUITIDLE|INTERRUPT)


    autotoggle - Whether AI-status toggles with connection

    If enabled, AI status is turned off when a player connects, and on
    when a player disconnects.

    Level: Situational.
    Category: Networking.

    Default: disabled


    barbarians - Barbarian appearance frequency

    This setting controls how frequently the barbarians appear in the
    game. See also the 'onsetbarbs' setting.

    Level: Vital.
    Category: Military.

    Possible values:

  • DISABLED: "No barbarians"

  • HUTS_ONLY: "Only in huts"

  • NORMAL: "Normal rate of appearance"

  • FREQUENT: "Frequent barbarian uprising"

  • HORDES: "Raging hordes"

    Default: "Normal rate of appearance" (NORMAL)


    borders - National borders

    If this is not disabled, then any land tiles around a city or border
    claiming Extra (like the classic ruleset's Fortress base) will be
    owned by that nation.

    Level: Situational.
    Category: Military.

    Possible values:

  • DISABLED: "Disabled"

  • ENABLED: "Enabled"

  • SEE_INSIDE: "See everything inside borders"

  • EXPAND: "Borders expand to unknown, revealing tiles"

    Default: "Enabled" (ENABLED)


    citymindist - Minimum distance between cities

    When a player attempts to found a new city, it is prevented if the
    distance from any existing city is less than this setting. For
    example, when this setting is 3, there must be at least two clear
    tiles in any direction between all existing cities and the new city
    site. A value of 1 removes any such restriction on city placement.

    Level: Situational.
    Category: Sociological.

    Minimum: 1, Default: 2, Maximum: 11

    Value set to 3


    citynames - Allowed city names

    - "No restrictions" (NO_RESTRICTIONS): players can have multiple
    cities with the same names.
    - "Unique to a player" (PLAYER_UNIQUE): one player can't have multiple
    cities with the same name.
    - "Globally unique" (GLOBAL_UNIQUE): all cities in a game have to have
    different names.
    - "No city name stealing" (NO_STEALING): like "Globally unique", but a
    player isn't allowed to use a default city name of another nation
    unless it is a default for their nation also.

    Level: Rare.
    Category: Sociological.

    Possible values:

  • NO_RESTRICTIONS: "No restrictions"

  • PLAYER_UNIQUE: "Unique to a player"

  • GLOBAL_UNIQUE: "Globally unique"

  • NO_STEALING: "No city name stealing"

    Default: "Unique to a player" (PLAYER_UNIQUE)


    civilwarsize - Minimum number of cities for civil war

    A civil war is triggered when a player has at least this many cities
    and the player's capital is captured. If this option is set to the
    maximum value, civil wars are turned off altogether.

    Level: Rare.
    Category: Sociological.

    Minimum: 2, Default: 10, Maximum: 1000


    compress - Savegame compression level

    If non-zero, saved games will be compressed depending on the
    'compresstype' setting. Larger values will give better compression but
    take longer.

    Level: Rare.
    Category: Internal.
    Can only be used in server console.

    Minimum: 1, Default: 6, Maximum: 9


    compresstype - Savegame compression algorithm

    Compression library to use for savegames.

    Level: Rare.
    Category: Internal.
    Can only be used in server console.

    Possible values:

  • PLAIN: "No compression"

  • LIBZ: "Using zlib (gzip format)"

  • BZIP2: "Using bzip2"

  • XZ: "Using xz"

    Default: "Using bzip2" (BZIP2)


    conquercost - Penalty when getting tech from conquering

    For each technology you gain by conquering an enemy city, you lose
    research points equal to this percentage of the cost to research a new
    technology. If this is non-zero, you can end up with negative research
    points.

    Level: Rare.
    Category: Scientific.

    Minimum: 0, Default: 0, Maximum: 100


    contactturns - Turns until player contact is lost

    Players may meet for diplomacy this number of turns after their units
    have last met, even when they do not have an embassy. If set to zero,
    then players cannot meet unless they have an embassy.

    Level: Rare.
    Category: Military.

    Minimum: 0, Default: 20, Maximum: 100


    demography - What is in the Demographics report

    This should be a string of characters, each of which specifies the
    inclusion of a line of information in the Demographics report.
    The characters and their meanings are:
        N = include Population
        P = include Production
        A = include Land Area
        L = include Literacy
        R = include Research Speed
        S = include Settled Area
        E = include Economics
        M = include Military Service
        O = include Pollution
        C = include Culture
    Additionally, the following characters control whether or not certain
    columns are displayed in the report:
        q = display "quantity" column
        r = display "rank" column
        b = display "best nation" column
    The order of characters is not significant, but their capitalization
    is.

    Level: Situational.
    Category: Internal.

    Default: "NASRLPEMOCqrb"


    diplbulbcost - Penalty when getting tech from treaty

    For each technology you gain from a diplomatic treaty, you lose
    research points equal to this percentage of the cost to research a new
    technology. If this is non-zero, you can end up with negative research
    points.

    Level: Rare.
    Category: Scientific.

    Minimum: 0, Default: 0, Maximum: 100


    diplchance - Base chance for diplomats and spies to succeed

    The base chance of a spy returning from a successful mission and the
    base chance of success for diplomats and spies.

    Level: Situational.
    Category: Military.

    Minimum: 40, Default: 80, Maximum: 100


    diplgoldcost - Penalty when getting gold from treaty

    When transferring gold in diplomatic treaties, this percentage of the
    agreed sum is lost to both parties; it is deducted from the donor but
    not received by the recipient.

    Level: Rare.
    Category: Scientific.

    Minimum: 0, Default: 0, Maximum: 100


    diplomacy - Ability to do diplomacy with other players

    This setting controls the ability to do diplomacy with other players.

    Level: Situational.
    Category: Military.

    Possible values:

  • ALL: "Enabled for everyone"

  • HUMAN: "Only allowed between human players"

  • AI: "Only allowed between AI players"

  • NOAI: "Only allowed when human involved"

  • NOMIXED: "Only allowed between two humans, or two AI players"

  • TEAM: "Restricted to teams"

  • DISABLED: "Disabled for everyone"

    Default: "Enabled for everyone" (ALL)


    disasters - Frequency of disasters

    Affects how often random disasters happen to cities, if any are
    defined by the ruleset. The relative frequency of disaster types is
    set by the ruleset. Zero prevents any random disasters from occurring.

    Level: Vital.
    Category: Sociological.

    Minimum: 0, Default: 10, Maximum: 1000


    dispersion - Area where initial units are located

    This is the radius within which the initial units are dispersed.

    Level: Situational.
    Category: Sociological.

    Minimum: 0, Default: 0, Maximum: 10


    ec_chat - Save chat messages in the event cache

    If turned on, chat messages will be saved in the event cache.

    Level: Situational.
    Category: Internal.

    Default: enabled


    ec_info - Print turn and time for each cached event

    If turned on, all cached events will be marked by the turn and time of
    the event like '(T2 - 15:29:52)'.

    Level: Situational.
    Category: Internal.

    Default: disabled


    ec_max_size - Size of the event cache

    This defines the maximal number of events in the event cache.

    Level: Situational.
    Category: Internal.

    Minimum: 10, Default: 256, Maximum: 20000


    ec_turns - Event cache for this number of turns

    Event messages are saved for this number of turns. A value of 0
    deactivates the event cache.

    Level: Situational.
    Category: Internal.

    Minimum: 0, Default: 1, Maximum: 32768


    endspaceship - Should the game end if the spaceship arrives?

    If this option is turned on, the game will end with the arrival of a
    spaceship at Alpha Centauri.

    Level: Vital.
    Category: Scientific.

    Default: enabled


    endturn - Turn the game ends

    The game will end at the end of the given turn.

    Level: Vital.
    Category: Sociological.

    Minimum: 0, Default: 5000, Maximum: 32767


    first_timeout - First turn timeout

    If greater than 0, T0 will last for 'first_timeout' seconds.
    If set to 0, T0 will not have a timeout.
    If set to -1, the special treatment of T0 will be disabled.
    See also 'timeout'.

    Level: Vital.
    Category: Internal.

    Minimum: -1, Default: -1, Maximum: 8639999


    fixedlength - Fixed-length turns play mode

    If this is turned on the game turn will not advance until the timeout
    has expired, even after all players have clicked on "Turn Done".

    Level: Situational.
    Category: Internal.

    Default: disabled


    flatpoles - How much the land at the poles is flattened

    Controls how much the height of the poles is flattened during map
    generation, preventing a diversity of land terrain there. 0 is no
    flattening, 100 is maximum flattening. Only affects the 'RANDOM' and
    'FRACTAL' map generators.

    Level: Situational.
    Category: Geological.

    Minimum: 0, Default: 100, Maximum: 100


    foggedborders - Whether fog of war applies to border changes

    If this setting is enabled, players will not be able to see changes in
    tile ownership if they do not have direct sight of the affected tiles.
    Otherwise, players can see any or all changes to borders as long as
    they have previously seen the tiles.

    Level: Rare.
    Category: Military.

    Default: disabled


    fogofwar - Whether to enable fog of war

    If this is enabled, only those units and cities within the vision
    range of your own units and cities will be revealed to you. You will
    not see new cities or terrain changes in tiles not observed.

    Level: Rare.
    Category: Military.

    Default: enabled


    foodbox - Food required for a city to grow

    This is the base amount of food required to grow a city. This value is
    multiplied by another factor that comes from the ruleset and is
    dependent on the size of the city.

    Level: Situational.
    Category: Economic.

    Minimum: 1, Default: 100, Maximum: 10000

    Value set to 150


    freecost - Penalty when getting a free tech

    For each technology you gain "for free" (other than covered by
    'diplcost' or 'conquercost': for instance, from huts or from Great
    Library effects), you lose research points equal to this percentage of
    the cost to research a new technology. If this is non-zero, you can
    end up with negative research points.

    Level: Rare.
    Category: Scientific.

    Minimum: 0, Default: 0, Maximum: 100


    fulltradesize - Minimum city size to get full trade

    There is a trade penalty in all cities smaller than this. The penalty
    is 100% (no trade at all) for sizes up to 'notradesize', and decreases
    gradually to 0% (no penalty except the normal corruption) for
    size='fulltradesize'. See also 'notradesize'.

    Level: Rare.
    Category: Economic.

    Minimum: 1, Default: 1, Maximum: 50


    gameseed - Game random seed

    For zero (the default) a seed will be chosen based on the current
    time.

    Level: Rare.
    Category: Internal.
    Can only be used in server console.

    Minimum: 0, Default: 0, Maximum: 2147483647


    generator - Method used to generate map

    Specifies the algorithm used to generate the map. If the default value
    of the 'startpos' option is used, then the chosen generator chooses an
    appropriate 'startpos' setting; otherwise, the generated map tries to
    accommodate the chosen 'startpos' setting.
    - "Scenario map" (SCENARIO): indicates a pre-generated map. By
    default, if the scenario does not specify start positions, they will
    be allocated depending on the size of continents.
    - "Fully random height" (RANDOM): generates maps with a number of
    equally spaced, relatively small islands. By default, start positions
    are allocated depending on continent size.
    - "Pseudo-fractal height" (FRACTAL): generates Earthlike worlds with
    one or more large continents and a scattering of smaller islands. By
    default, players are all placed on a single continent.
    - "Island-based" (ISLAND): generates 'fair' maps with a number of
    similarly-sized and -shaped islands, each with approximately the same
    ratios of terrain types. By default, each player gets their own
    island.
    - "Fair islands" (FAIR): generates the exact copy of the same island
    for every player or every team.
    If the requested generator is incompatible with other server settings,
    the server may fall back to another generator.

    Level: Vital.
    Category: Geological.

    Possible values:

  • SCENARIO: "Scenario map"

  • RANDOM: "Fully random height"

  • FRACTAL: "Pseudo-fractal height"

  • ISLAND: "Island-based"

  • FAIR: "Fair islands"

    Default: "Fully random height" (RANDOM)


    globalwarming - Global warming

    If turned off, global warming will not occur as a result of pollution.
    This setting does not affect pollution.

    Level: Vital.
    Category: Geological.

    Default: enabled


    gold - Starting gold per player

    At the beginning of the game, each player is given this much gold.

    Level: Vital.
    Category: Economic.

    Minimum: 0, Default: 50, Maximum: 50000


    happyborders - Units inside borders cause no unhappiness

    If this is set, units will not cause unhappiness when inside your
    borders, or even allies borders, depending on value.

    Level: Situational.
    Category: Military.

    Possible values:

  • DISABLED: "Borders are not helping"

  • NATIONAL: "Happy within own borders"

  • ALLIED: "Happy within allied borders"

    Default: "Happy within own borders" (NATIONAL)


    homecaughtunits - Give caught units a homecity

    If unset, caught units will have no homecity and will be subject to
    the 'killunhomed' option.

    Level: Rare.
    Category: Military.

    Default: enabled


    huts - Amount of huts (bonus extras)

    This setting gives number of huts that will be placed on every one
    thousand tiles. Huts are tile extras that may be investigated by
    units.

    Level: Vital.
    Category: Geological.

    Minimum: 0, Default: 15, Maximum: 500


    kicktime - Time before a kicked user can reconnect

    Gives the time in seconds before a user kicked using the "kick"
    command may reconnect. Changing this setting will affect users kicked
    in the past.

    Level: Rare.
    Category: Networking.
    Can only be used in server console.

    Minimum: 0, Default: 1800, Maximum: 86400


    killcitizen - Reduce city population after attack

    This flag indicates whether a city's population is reduced after a
    successful attack by an enemy unit. If this is disabled, population is
    never reduced. Even when this is enabled, only some units may kill
    citizens. The percent chance a citizen will be killed can be further regulated by killcitizen_pct (see below.)

    Level: Rare.
    Category: Military.

    Default: enabled


    killcitizen_pct - Reduce city population after attack

    
    

    Level: Rare.
    Category: Military.

    Default: enabled


    killstack - Do all units in tile die with defender

    If this is enabled, each time a defender unit loses in combat, and is
    not inside a city or suitable base, all units in the same tile are
    destroyed along with the defender. If this is disabled, only the
    defender unit is destroyed.

    Level: Rare.
    Category: Military.

    Default: enabled


    killunhomed - Slowly kill units without home cities (e.g., starting units)

    If greater than 0, then every unit without a homecity will lose
    hitpoints each turn. The number of hitpoints lost is given by
    'killunhomed' percent of the hitpoints of the unit type. At least one
    hitpoint is lost every turn until the death of the unit.

    Level: Rare.
    Category: Military.

    Minimum: 0, Default: 0, Maximum: 100


    landmass - Percentage of the map that is land

    This setting gives the approximate percentage of the map that will be
    made into land.

    Level: Situational.
    Category: Geological.

    Minimum: 15, Default: 30, Maximum: 85


    mapseed - Map generation random seed

    The same seed will always produce the same map; for zero (the default)
    a seed will be chosen based on the time to give a random map.

    Level: Rare.
    Category: Internal.
    Can only be used in server console.

    Minimum: 0, Default: 0, Maximum: 2147483647


    mapsize - Map size definition

    Chooses the method used to define the map size. Other options specify
    the parameters for each method.
    - "Number of tiles" (FULLSIZE): Map area (option 'size').
    - "Tiles per player" (PLAYER): Number of (land) tiles per player
    (option 'tilesperplayer').
    - "Width and height" (XYSIZE): Map width and height in tiles (options
    'xsize' and 'ysize').

    Level: Vital.
    Category: Geological.

    Possible values:

  • FULLSIZE: "Number of tiles"

  • PLAYER: "Tiles per player"

  • XYSIZE: "Width and height"

    Default: "Number of tiles" (FULLSIZE)

    Value set to "Tiles per player" (PLAYER)


    maxconnectionsperhost - Maximum number of connections to the server per host

    New connections from a given host will be rejected if the total number
    of connections from the very same host equals or exceeds this value. A
    value of 0 means that there is no limit, at least up to the maximum
    number of connections supported by the server.

    Level: Rare.
    Category: Networking.

    Minimum: 0, Default: 4, Maximum: 320


    maxplayers - Maximum number of players

    The maximal number of human and AI players who can be in the game.
    When this number of players are connected in the pregame state, any
    new players who try to connect will be rejected.
    When playing a scenario which defines player start positions, this
    setting cannot be set to greater than the number of defined start
    positions.

    Level: Vital.
    Category: Internal.

    Minimum: 1, Default: 150, Maximum: 150


    mgr_distance - Maximum distance citizens may migrate

    This setting controls how far citizens may look for a suitable
    migration destination when deciding which city to migrate to. The
    value is added to the current city radius and compared to the distance
    between the two cities. If the distance is lower or equal, migration
    is possible. This setting has no effect unless migration is activated
    by the 'migration' setting.

    Level: Rare.
    Category: Sociological.

    Minimum: -5, Default: 0, Maximum: 6


    mgr_foodneeded - Whether migration is limited by food

    If this setting is enabled, citizens will not migrate to cities which
    would not have enough food to support them. This setting has no effect
    unless migration is enabled by the 'migration' setting.

    Level: Rare.
    Category: Sociological.

    Default: enabled


    mgr_nationchance - Percent probability for migration within the same nation

    This setting controls how likely it is for citizens to migrate between
    cities owned by the same player. Zero indicates migration will never
    occur, 100 means that migration will always occur if the citizens find
    a suitable destination. This setting has no effect unless migration is
    activated by the 'migration' setting.

    Level: Rare.
    Category: Sociological.

    Minimum: 0, Default: 50, Maximum: 100


    mgr_turninterval - Number of turns between migrations from a city

    This setting controls the number of turns between migration checks for
    a given city. The interval is calculated from the founding turn of the
    city. So for example if this setting is 5, citizens will look for a
    suitable migration destination every five turns from the founding of
    their current city. Migration will never occur the same turn that a
    city is built. This setting has no effect unless migration is enabled
    by the 'migration' setting.

    Level: Rare.
    Category: Sociological.

    Minimum: 1, Default: 5, Maximum: 100


    mgr_worldchance - Percent probability for migration between foreign cities

    This setting controls how likely it is for migration to occur between
    cities owned by different players. Zero indicates migration will never
    occur, 100 means that citizens will always migrate if they find a
    suitable destination. This setting has no effect if migration is not
    enabled by the 'migration' setting.

    Level: Rare.
    Category: Sociological.

    Minimum: 0, Default: 10, Maximum: 100


    migration - Whether to enable citizen migration

    This is the master setting that controls whether citizen migration is
    active in the game. If enabled, citizens may automatically move from
    less desirable cities to more desirable ones. The "desirability" of a
    given city is calculated from a number of factors. In general larger
    cities with more income and improvements will be preferred. Citizens
    will never migrate out of the capital, or cause a wonder to be lost by
    disbanding a city. A number of other settings control how migration
    behaves:
      'mgr_turninterval' - How often citizens try to migrate.
      'mgr_foodneeded'   - Whether destination food is checked.
      'mgr_distance'     - How far citizens will migrate.
      'mgr_worldchance'  - Chance for inter-nation migration.
      'mgr_nationchance' - Chance for intra-nation migration.

    Level: Rare.
    Category: Sociological.

    Default: disabled


    minplayers - Minimum number of players

    There must be at least this many players (connected human players)
    before the game can start.

    Level: Vital.
    Category: Internal.

    Minimum: 0, Default: 1, Maximum: 150


    nationset - Set of nations to choose from

    Controls the set of nations allowed in the game. The choices are
    defined by the ruleset.
    Only nations in the set selected here will be allowed in any
    circumstances, including new players and civil war; small sets may
    thus limit the number of players in a game.
    If this is left blank, the ruleset's default nation set is used.
    See '/list nationsets' for possible choices for the currently loaded
    ruleset.

    Level: Rare.
    Category: Internal.

    Default: ""


    naturalcitynames - Whether to use natural city names

    If enabled, the default city names will be determined based on the
    surrounding terrain.

    Level: Rare.
    Category: Sociological.

    Default: enabled


    nettimeout - Seconds to let a client's network connection block

    If a network connection is blocking for a time greater than this
    value, then the connection is closed. Zero means there is no timeout
    (although connections will be automatically disconnected eventually).

    Level: Rare.
    Category: Networking.

    Minimum: 0, Default: 10, Maximum: 120


    netwait - Max seconds for network buffers to drain

    The server will wait for up to the value of this parameter in seconds,
    for all client connection network buffers to unblock. Zero means the
    server will not wait at all.

    Level: Rare.
    Category: Networking.

    Minimum: 0, Default: 4, Maximum: 20


    notradesize - Maximum size of a city without trade

    Cities do not produce any trade at all unless their size is larger
    than this amount. The produced trade increases gradually for cities
    larger than 'notradesize' and smaller than 'fulltradesize'. See also
    'fulltradesize'.

    Level: Rare.
    Category: Economic.

    Minimum: 0, Default: 0, Maximum: 49


    nuclearwinter - Nuclear winter

    If turned off, nuclear winter will not occur as a result of nuclear
    war.

    Level: Vital.
    Category: Geological.

    Default: enabled


    nukes_major - Allow nuclear detonations

    Allow players to create major thermonuclear weapons. If turned off, this will have no effect on standard fission nuclear weapons; but in rulesets which require this setting to be on for thermonuclear fusion weapons, they will be disallowed for the current game. If turn on, rulesets which require this setting for the creation of advanced fusion weapons will allow them to be created in that particular game.

    Level: Vital.
    Category: Military.

    Default: enabled


    nukes_minor - Allow nuclear detonations

    If turned off, will not allow detonating nukes in rulesets which require the setting to be on in order to detonate nukes. In all rulesets, this setting turn on will allow nuclear detonations and (in some rulesets) the creation of units considered to be "minor nukes."  See also: nukes_major

    Level: Vital.
    Category: Military.

    Default: enabled


    occupychance - Chance of moving into tile after attack

    If set to 0, combat is Civ1/2-style (when you attack, you remain in
    place). If set to 100, attacking units will always move into the tile
    they attacked when they win the combat (and no enemy units remain in
    the tile). If set to a value between 0 and 100, this will be used as
    the percent chance of "occupying" territory.

    Level: Rare.
    Category: Military.

    Minimum: 0, Default: 0, Maximum: 100


    onsetbarbs - Barbarian onset turn

    Barbarians will not appear before this turn.

    Level: Vital.
    Category: Military.

    Minimum: 0, Default: 60, Maximum: 32767


    persistentready - When the Readiness of a player gets autotoggled off

    In pre-game, usually when new players join or old ones leave, those
    who have already accepted game to start by toggling "Ready" get that
    autotoggled off in the changed situation. This setting can be used to
    make readiness more persistent.

    Level: Rare.
    Category: Networking.

    Possible values:

  • DISABLED: "Disabled"

  • CONNECTED: "As long as connected"

    Default: "Disabled" (DISABLED)


    phasemode - Control of simultaneous player/team phases

    This setting controls whether players may make moves at the same time
    during a turn. Change in setting takes effect next turn.

    Level: Situational.
    Category: Internal.

    Possible values:

  • ALL: "All players move concurrently"

  • PLAYER: "All players alternate movement"

  • TEAM: "Team alternate movement"

    Default: "All players move concurrently" (ALL)


    pingtime - Seconds between PINGs

    The server will poll the clients with a PING request each time this
    period elapses.

    Level: Rare.
    Category: Networking.

    Minimum: 1, Default: 20, Maximum: 1800


    pingtimeout - Time to cut a client

    If a client doesn't reply to a PING in this time the client is
    disconnected.

    Level: Rare.
    Category: Networking.

    Minimum: 60, Default: 60, Maximum: 1800


    plrcolormode - How to pick player colors

    This setting determines how player colors are chosen. Player colors
    are used in the Nations report, for national borders on the map, and
    so on.
    - "Per-player, in order" (PLR_ORDER): colors are assigned to
    individual players in order from a list defined by the ruleset.
    - "Per-player, random" (PLR_RANDOM): colors are assigned to individual
    players randomly from the set defined by the ruleset.
    - "Set manually" (PLR_SET): colors can be set with the 'playercolor'
    command before the game starts; these are not restricted to the
    ruleset colors. Any players for which no color is set when the game
    starts get a random color from the ruleset.
    - "Per-team, in order" (TEAM_ORDER): colors are assigned to teams from
    the list in the ruleset. Every player on the same team gets the same
    color.
    - "Per-nation, in order" (NATION_ORDER): if the ruleset defines a
    color for a player's nation, the player takes that color. Any players
    whose nations don't have associated colors get a random color from the
    list in the ruleset.
    Regardless of this setting, individual player colors can be changed
    after the game starts with the 'playercolor' command.

    Level: Rare.
    Category: Internal.

    Possible values:

  • PLR_ORDER: "Per-player, in order"

  • PLR_RANDOM: "Per-player, random"

  • PLR_SET: "Set manually"

  • TEAM_ORDER: "Per-team, in order"

  • NATION_ORDER: "Per-nation, in order"

    Default: "Per-player, in order" (PLR_ORDER)

    Value set to "Per-nation, in order" (NATION_ORDER)


    polarstrip - Whether the map will generate polar strip(s)

    If this setting is disabled, then any geological settings that normally generate polar strip(s) on the top and/or bottom of the map, will be forcibly suppressed. This does not suppress the formation of natural continents and islands in these regions.

    Level: Situational.
    Category: Geological

    Default: disabled


    rapturedelay - Number of turns between rapture effect

    Sets the number of turns between rapture growth of a city. If set to n
    a city will grow after celebrating for n+1 turns.

    Level: Situational.
    Category: Sociological.

    Minimum: 1, Default: 1, Maximum: 99


    razechance - Chance for conquered building destruction

    When a player conquers a city, each city improvement has this
    percentage chance to be destroyed.

    Level: Rare.
    Category: Military.

    Minimum: 0, Default: 20, Maximum: 100


    restrictinfra - Restrict the use of the infrastructure for enemy units

    If this option is enabled, the use of roads and rails will be
    restricted for enemy units.

    Level: Rare.
    Category: Military.

    Default: disabled


    revealmap - Reveal the map

    If "Reveal map at game start" (START) is set, the initial state of the
    entire map will be known to all players from the start of the game,
    although it may still be fogged (depending on the 'fogofwar' setting).
    If "Unfog map for dead players" (DEAD) is set, dead players can see
    the entire map, if they are alone in their team.

    Level: Situational.
    Category: Military.

    Possible values (option can take any number of these):

  • START: "Reveal map at game start"

  • DEAD: "Unfog map for dead players"

    Default: empty value


    revolen - Length of revolution

    When changing governments, a period of anarchy will occur. Value of
    this setting, used the way 'revolentype' setting dictates, defines the
    length of the anarchy.

    Level: Rare.
    Category: Sociological.

    Minimum: 1, Default: 5, Maximum: 20

    Value set to 7


    revolentype - Way to determine revolution length

    Which method is used in determining how long period of anarchy lasts
    when changing government. The actual value is set with 'revolen'
    setting.

    Level: Rare.
    Category: Sociological.

    Possible values:

  • FIXED: "Fixed to 'revolen' turns"

  • RANDOM: "Randomly 1-'revolen' turns"

  • QUICKENING: "First time 'revolen', then always quicker"

  • RANDQUICK: "Random, max always quicker"

    Default: "Randomly 1-'revolen' turns" (RANDOM)


    savefrequency - Minutes per auto-save

    How many minutes elapse between automatic game saves. Unlike other
    save types, this save is only meant as backup for computer memory, and
    it always uses the same name, older saves are not kept. This setting
    only has an effect when the 'autosaves' setting includes "Timer".

    Level: Vital.
    Category: Internal.
    Can only be used in server console.

    Minimum: 2, Default: 15, Maximum: 1440


    savename - Definition of the save file name

    Within the string the following custom formats are allowed:
      %R = <reason>
      %S = <suffix>
      %T = <turn-number>
      %Y = <game-year>
    
    Example: 'freeciv-T%04T-Y%+05Y-%R' => 'freeciv-T0100-Y00001-manual'
    
    Be careful to use at least one of %T and %Y, else newer savegames will
    overwrite old ones. If none of the formats is used '-T%04T-Y%05Y-%R'
    is appended to the value of 'savename'.

    Level: Vital.
    Category: Internal.
    Can only be used in server console.

    Default: "freeciv"


    savepalace - Rebuild palace whenever capital is conquered

    If this is turned on, when the capital is conquered the palace is
    automatically rebuilt for free in another randomly chosen city. This
    is significant because the technology requirement for building a
    palace will be ignored. (In some rulesets, buildings other than the
    palace are affected by this setting.)

    Level: Rare.
    Category: Military.

    Default: enabled


    saveturns - Turns per auto-save

    How many turns elapse between automatic game saves. This setting only
    has an effect when the 'autosaves' setting includes "New turn".

    Level: Vital.
    Category: Internal.
    Can only be used in server console.

    Minimum: 1, Default: 1, Maximum: 200


    sciencebox - Technology cost multiplier percentage

    This affects how quickly players can research new technology. All tech
    costs are multiplied by this amount (as a percentage). The base tech
    costs are determined by the ruleset or other game settings.

    Level: Situational.
    Category: Scientific.

    Minimum: 1, Default: 100, Maximum: 10000

    Value set to 150


    scorefile - Name for the score log file

    The default name for the score log file is 'freeciv-score.log'.

    Level: Situational.
    Category: Internal.
    Can only be used in server console.

    Default: "freeciv-score.log"


    scorelog - Whether to log player statistics

    If this is turned on, player statistics are appended to the file
    defined by the option 'scorefile' every turn. These statistics can be
    used to create power graphs after the game.

    Level: Situational.
    Category: Internal.
    Can only be used in server console.

    Default: disabled


    scoreloglevel - Scorelog level

    Whether scores are logged for all players including AIs, or only for
    human players.

    Level: Situational.
    Category: Internal.
    Can only be used in server console.

    Possible values:

  • ALL: "All players"

  • HUMANS: "Human players only"

    Default: "All players" (ALL)


    separatepoles - Whether the poles are separate continents

    If this setting is disabled, the continents may attach to poles.

    Level: Situational.
    Category: Geological.

    Default: enabled


    shieldbox - Multiplier percentage for production costs

    This affects how quickly units and buildings can be produced.  The
    base costs are multiplied by this value (as a percentage).

    Level: Situational.
    Category: Economic.

    Minimum: 1, Default: 100, Maximum: 10000


    singlepole - Whether there's just one pole generated

    If this setting is enabled, only one side of the map will have a pole.
    This setting has no effect if the map wraps both directions.

    Level: Situational.
    Category: Geological.

    Default: disabled


    size - Map area (in thousands of tiles)

    This value is used to determine the map area.
      size = 4 is a normal map of 4,000 tiles (default)
      size = 20 is a huge map of 20,000 tiles
    For this option to take effect, the "Map size definition" option
    ('mapsize') must be set to "Number of tiles" (FULLSIZE).

    Level: Vital.
    Category: Geological.

    Minimum: 0, Default: 4, Maximum: 2048


    specials - Amount of "special" resource tiles

    Special resources improve the basic terrain type they are on. The
    server variable's scale is parts per thousand.

    Level: Vital.
    Category: Geological.

    Minimum: 0, Default: 250, Maximum: 1000


    startcity - Whether player starts with a city

    If this is set, game will start with player's first city already
    founded to starting location.

    Level: Vital.
    Category: Sociological.

    Default: disabled


    startpos - Method used to choose start positions

    The method used to choose where each player's initial units start on
    the map. (For scenarios which include pre-set start positions, this
    setting is ignored.)
    - "Generator's choice" (DEFAULT): the start position placement will
    depend on the map generator chosen. See the 'generator' setting.
    - "One player per continent" (SINGLE): one player is placed on each of
    a set of continents of approximately equivalent value (if possible).
    - "Two or three players per continent" (2or3): similar to SINGLE
    except that two players will be placed on each continent, with three
    on the 'best' continent if there is an odd number of players.
    - "All players on a single continent" (ALL): all players will start on
    the 'best' available continent.
    - "Depending on size of continents" (VARIABLE): players will be placed
    on the 'best' available continents such that, as far as possible, the
    number of players on each continent is proportional to its value.
    If the server cannot satisfy the requested setting due to there being
    too many players for continents, it may fall back to one of the
    others. (However, map generators try to create the right number of
    continents for the choice of this 'startpos' setting and the number of
    players, so this is unlikely to occur.)

    Level: Vital.
    Category: Geological.

    Possible values:

  • DEFAULT: "Generator's choice"

  • SINGLE: "One player per continent"

  • 2or3: "Two or three players per continent"

  • ALL: "All players on a single continent"

  • VARIABLE: "Depending on size of continents"

    Default: "Generator's choice" (DEFAULT)


    startunits - List of players' initial units

    This should be a string of characters, each of which specifies a unit
    role. The first character must be native to at least one "Starter"
    terrain. The characters and their meanings are:
        c   = City founder (eg., Settlers)
        w   = Terrain worker (eg., Engineers)
        x   = Explorer (eg., Explorer)
        k   = Gameloss (eg., King)
        s   = Diplomat (eg., Diplomat)
        f   = Ferryboat (eg., Trireme)
        d   = Ok defense unit (eg., Warriors)
        D   = Good defense unit (eg., Phalanx)
        a   = Fast attack unit (eg., Horsemen)
        A   = Strong attack unit (eg., Catapult)
    

    Level: Vital.
    Category: Sociological.

    Default: "ccwwx"

    Value set to "cx"


    steepness - Amount of hills/mountains

    Small values give flat maps, while higher values give a steeper map
    with more hills and mountains.

    Level: Situational.
    Category: Geological.

    Minimum: 0, Default: 30, Maximum: 100


    team_pooled_research - Team pooled research

    If this setting is turned on, then the team mates will share the
    science research. Else, every player of the team will have to make its
    own.

    Level: Vital.
    Category: Scientific.

    Default: enabled


    teamplacement - Method used for placement of team mates

    After start positions have been generated thanks to the 'startpos'
    setting, this setting controls how the start positions will be
    assigned to the different players of the same team.
    - "Disabled" (DISABLED): the start positions will be randomly assigned
    to players, regardless of teams.
    - "As close as possible" (CLOSEST): players will be placed as close as
    possible, regardless of continents.
    - "On the same continent" (CONTINENT): if possible, place all players
    of the same team onto the same island/continent.
    - "Horizontal placement" (HORIZONTAL): players of the same team will
    be placed horizontally.
    - "Vertical placement" (VERTICAL): players of the same team will be
    placed vertically.

    Level: Vital.
    Category: Geological.

    Possible values:

  • DISABLED: "Disabled"

  • CLOSEST: "As close as possible"

  • CONTINENT: "On the same continent"

  • HORIZONTAL: "Horizontal placement"

  • VERTICAL: "Vertical placement"

    Default: "As close as possible" (CLOSEST)


    techlevel - Number of initial techs per player

    At the beginning of the game, each player is given this many
    technologies. The technologies chosen are random for each player.
    Depending on the value of tech_cost_style in the ruleset, a big value
    for 'techlevel' can make the next techs really expensive.

    Level: Vital.
    Category: Scientific.

    Minimum: 0, Default: 0, Maximum: 100


    techlossforgiveness - Research point debt threshold for losing tech

    When you have negative research points, and your shortfall is greater
    than this percentage of the cost of your current research, you forget
    a technology you already knew.
    The special value -1 prevents loss of technology regardless of
    research points.

    Level: Rare.
    Category: Scientific.

    Minimum: -1, Default: -1, Maximum: 200


    techlossrestore - Research points restored after losing a tech

    When you lose a technology due to a negative research balance (see
    'techlossforgiveness'), this percentage of its research cost is
    credited to your research balance (this may not be sufficient to make
    it positive).
    The special value -1 means that your research balance is always
    restored to zero, regardless of your previous shortfall.

    Level: Rare.
    Category: Scientific.

    Minimum: -1, Default: 50, Maximum: 100


    techlost_donor - Chance to lose a technology while giving it

    The chance that your civilization will lose a technology if you teach
    it to someone else by treaty, or if it is stolen from you.

    Level: Rare.
    Category: Scientific.

    Minimum: 0, Default: 0, Maximum: 100


    techlost_recv - Chance to lose a technology while receiving it

    The chance that learning a technology by treaty or theft will fail.

    Level: Rare.
    Category: Scientific.

    Minimum: 0, Default: 0, Maximum: 100


    techpenalty - Percentage penalty when changing tech

    If you change your current research technology, and you have positive
    research points, you lose this percentage of those research points.
    This does not apply when you have just gained a technology this turn.

    Level: Rare.
    Category: Scientific.

    Minimum: 0, Default: 100, Maximum: 100


    temperature - Average temperature of the planet

    Small values will give a cold map, while larger values will give a
    hotter map.
    
    100 means a very dry and hot planet with no polar arctic zones, only
    tropical and dry zones.
     70 means a hot planet with little polar ice.
     50 means a temperate planet with normal polar, cold, temperate, and
    tropical zones; a desert zone overlaps tropical and temperate zones.
     30 means a cold planet with small tropical zones.
      0 means a very cold planet with large polar zones and no tropics.

    Level: Situational.
    Category: Geological.

    Minimum: 0, Default: 50, Maximum: 100


    tilesperplayer - Number of (land) tiles per player

    This value is used to determine the map dimensions. It calculates the
    map size at game start based on the number of players and the value of
    the setting 'landmass'.
    For this option to take effect, the "Map size definition" option
    ('mapsize') must be set to "Tiles per player" (PLAYER).

    Level: Vital.
    Category: Geological.

    Minimum: 1, Default: 100, Maximum: 1000

    Value set to 300


    timeaddenemymove - Timeout at least n seconds when enemy moved

    Any time a unit moves while in sight of an enemy player, the remaining
    timeout is increased to this value.

    Level: Vital.
    Category: Internal.

    Minimum: 0, Default: 0, Maximum: 8639999


    timeout - Maximum seconds per turn

    If all players have not hit "Turn Done" before this time is up, then
    the turn ends automatically. Zero means there is no timeout. In
    servers compiled with debugging, a timeout of -1 sets the autogame
    test mode. Only connections with hack level access may set the timeout
    to lower than 30 seconds. Use this with the command "timeoutincrease"
    to have a dynamic timer. The first turn is treated as a special case
    and is controlled by the 'first_timeout' setting.

    Level: Vital.
    Category: Internal.

    Minimum: -1, Default: 0, Maximum: 8639999


    tinyisles - Presence of 1x1 islands

    This setting controls whether the map generator is allowed to make
    islands of one only tile size.

    Level: Rare.
    Category: Geological.

    Default: disabled


    topology - Map topology index

    Freeciv maps are always two-dimensional. They may wrap at the
    north-south and east-west directions to form a flat map, a cylinder,
    or a torus (donut). Individual tiles may be rectangular or hexagonal,
    with either a classic or isometric alignment - this should be set
    based on the tileset being used.
    Classic rectangular:       Isometric rectangular:
          _________               /\/\/\/\/\
         |_|_|_|_|_|             /\/\/\/\/\/
         |_|_|_|_|_|             \/\/\/\/\/\
         |_|_|_|_|_|             /\/\/\/\/\/
                                 \/\/\/\/\/
    Hex tiles:                 Iso-hex:
      /\/\/\/\/\/\               _   _   _   _   _
      | | | | | | |             / \_/ \_/ \_/ \_/ \
      \/\/\/\/\/\/\             \_/ \_/ \_/ \_/ \_/
       | | | | | | |            / \_/ \_/ \_/ \_/ \
       \/\/\/\/\/\/             \_/ \_/ \_/ \_/ \_/
    

    Level: Vital.
    Category: Geological.

    Possible values (option can take any number of these):

  • WRAPX: "Wrap East-West"

  • WRAPY: "Wrap North-South"

  • ISO: "Isometric"

  • HEX: "Hexagonal"

    Default: "Wrap East-West" and "Isometric" (WRAPX|ISO)

    Value set to "Wrap East-West", "Wrap North-South", "Isometric", and "Hexagonal" (WRAPX|WRAPY|ISO|HEX)


    trademindist - Minimum distance for trade routes

    In order for two cities in the same civilization to establish a trade
    route, they must be at least this far apart on the map. For square
    grids, the distance is calculated as "Manhattan distance", that is,
    the sum of the displacements along the x and y directions.

    Level: Rare.
    Category: Economic.

    Minimum: 1, Default: 9, Maximum: 999


    trading_city - City trading

    If turned off, trading cities in the diplomacy dialog is not allowed.

    Level: Rare.
    Category: Sociological.

    Default: enabled


    trading_gold - Gold trading

    If turned off, trading gold in the diplomacy dialog is not allowed.

    Level: Rare.
    Category: Sociological.

    Default: enabled


    trading_tech - Technology trading

    If turned off, trading technologies in the diplomacy dialog is not
    allowed.

    Level: Rare.
    Category: Sociological.

    Default: enabled


    traitdistribution - AI trait distribution method

    How trait values are given to AI players.

    Level: Rare.
    Category: Sociological.
    Is locked by the ruleset.

    Possible values:

  • FIXED: "Fixed"

  • EVEN: "Even"

    Default: "Fixed" (FIXED)


    turnblock - Turn-blocking game play mode

    If this is turned on, the game turn is not advanced until all players
    have finished their turn, including disconnected players.

    Level: Situational.
    Category: Internal.

    Default: enabled


    unitwaittime - Minimum time between unit actions over turn change

    This setting gives the minimum amount of time in seconds between unit
    moves and other significant actions (such as building cities) after a
    turn change occurs. For example, if this setting is set to 20 and a
    unit moves 5 seconds before the turn change, it will not be able to
    move or act in the next turn for at least 15 seconds. This value is
    limited to a maximum value of 2/3 'timeout'.

    Level: Vital.
    Category: Internal.

    Minimum: 0, Default: 0, Maximum: 8639999


    unreachableprotects - Does unreachable unit protect reachable ones

    This option controls whether tiles with both unreachable and reachable
    units can be attacked. If disabled, any tile with reachable units can
    be attacked. If enabled, tiles with an unreachable unit in them cannot
    be attacked.

    Level: Rare.
    Category: Military.

    Default: enabled


    victories - What kinds of victories are possible

    This setting controls how game can be won. One can always win by
    conquering entire planet, but other victory conditions can be enabled
    or disabled:
    - "Spacerace" (SPACERACE): Spaceship is built and travels to Alpha
    Centauri.
    - "Allied" (ALLIED): After defeating enemies, all remaining players
    are allied.
    - "Culture" (CULTURE): Player meets ruleset defined cultural
    domination criteria.
    

    Level: Vital.
    Category: Internal.

    Possible values (option can take any number of these):

  • SPACERACE: "Spacerace"

  • ALLIED: "Allied victory"

  • CULTURE: "Culture victory"

    Default: "Spacerace" and "Allied victory" (SPACERACE|ALLIED)


    wetness - Amount of water on landmasses

    Small values mean lots of dry, desert-like land; higher values give a
    wetter map with more swamps, jungles, and rivers.

    Level: Situational.
    Category: Geological.

    Minimum: 0, Default: 50, Maximum: 100


    xsize - Map width in tiles

    Defines the map width.
    For this option to take effect, the "Map size definition" option
    ('mapsize') must be set to "Width and height" (XYSIZE).

    Level: Vital.
    Category: Geological.

    Minimum: 16, Default: 64, Maximum: 128000


    ysize - Map height in tiles

    Defines the map height.
    For this option to take effect, the "Map size definition" option
    ('mapsize') must be set to "Width and height" (XYSIZE).

    Level: Vital.
    Category: Geological.

    Minimum: 16, Default: 64, Maximum: 128000


    zoc_purity - Whether units who ignore ZoC lift ZOC for units who don't ignore ZoC.

    If enabled, igZOC units do not negate ZOC for other units. This decreases exploits and increases importance of tactical positioning, notably in games with RestrictINFRA off.

    Level: Situational.
    Category: Military.

    Default: disabled

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