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domescration-ruleset/techs.ruleset
2026-02-21 14:29:36 +01:00

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; Modifying this file:
; You should not modify this file except to make bugfixes or
; for other "maintenance". If you want to make custom changes,
; you should create a new datadir subdirectory and copy this file
; into that directory, and then modify that copy. Then use the
; command "rulesetdir <mysubdir>" in the server to have freeciv
; use your new customized file.
[datafile]
description = "Civ2Civ3 technology data for Freeciv"
options = "+Freeciv-3.2-ruleset web-compatible"
format_version = 30
[control]
; Names for custom tech flags. There can be up to 8 of these.
; name = rule name; In some circumstances user may see this
; as part of some sentences, so try to make it descriptive
; and sensible.
; helptxt = displayed in the help for advances with this flag (optional)
;flags =
; { "name", "helptxt"
; }
; /* <-- avoid gettext warnings
;
; Tech classes:
;
; First one is the default one.
; If there is none, tech classes feature is disabled
;
; name = translatable name as seen by user
; rule_name = (optional) internal name for savegames, rulesets
; etc; if not present, "name" is used for this
; purpose too. Since the name used in savegames must
; not change, if you want to rename an item after a
; ruleset has been released, you should set
; "rule_name" to the original value of "name".
; cost_pct = how much techs of the class cost compared
; to normal. Default is 100%.
;
; */ <-- avoid gettext warnings
;[techclass_default]
;name =
; /* <-- avoid gettext warnings
;
; Below: The individual advances, one per section.
; The number can be variable, up to 400.
;
; The actual tag used (the * in [advance_*]) does not matter, except
; it must be unique within this file, and it may be used in debug
; output when reading this file.
;
; Notes:
;
; name = translatable name as seen by user
; rule_name = (optional) internal name for savegames, rulesets etc; if
; not present, "name" is used for this purpose too. Since
; the name used in savegames must not change, if you want
; to rename an item after a ruleset has been released, you
; should set "rule_name" to the original value of "name".
; class = tech class this tech belongs to, if they have been defined.
; Default is first one defined above.
; req1, req2 = advances required before researching this one
; root_req = tech required before acquiring this tech, by any means.
; All techs with any direct or indirect dependency on this
; one will *also* have this root_req, as well as their own
; and any others they inherit.
; Giving "None" explicitly here prevents a tech from
; inheriting root_reqs in this way, and stops root_req
; inheritance through that tech.
; Specifying a tech's root_req as itself means that the tech
; can only be acquired by special means (nation's init_techs,
; scripting, etc).
; research_reqs = requirements before researching this one. Can have non
; tech requirements because it is a requirement vector.
; See doc/README.effects to learn more about requirement
; vectors.
; Requiring a tech here instead of in req1, req2 or
; root_req is not supported yet.
; Requirements that may become fulfilled during the game
; when they weren't at the start of the game is not
; supported yet.
; flags = special flag strings
; graphic = icon for technology
; graphic_alt = alternate icon
; helptext = optional help text string (set units ruleset for examples)
; bonus_message = text seen when a player is the first to discover
; an bonus tech. Must contain '%s' to mark place of the tech
; gained.
; cost = if tech_cost_style is set to "Classic+" or "Experimental+",
; this field is read for information on how much a tech
; costs.
;
; Special values for req1 and req2 are "None" (first section below)
; and "Never" (never available). If only one tech is required,
; it should be listed as req1.
;
; As well as custom flags defined above, the following flag strings are
; possible:
;
; "Bonus_Tech" = player gets extra tech if reached first
; "Bridge" = "Settler" unit types can build extras that
; require bridge when occurring with some other
; extra. See "bridged_over" extra property in
; terrain.ruleset.
; "Build_Airborne" = from now on can build air units (for use by AI)
; "Claim_Ocean" = Player claims ocean tiles even if they are not
; adjacent to border source
; "Claim_Ocean_Limited" = Oceanic border sources claim ocean tiles even if
; they are not adjacent to border source
;
; */ <-- avoid gettext warnings
[advance_advanced_flight]
name = _("Advanced Flight")
req1 = "Radio"
req2 = "Machine Tools"
flags = ""
graphic = "a.advanced_flight"
graphic_alt = "-"
helptext = _("Enables movement of nuclear units.")
[advance_alphabet]
name = _("Alphabet")
req1 = "None"
req2 = "None"
flags = ""
graphic = "a.alphabet"
graphic_alt = "-"
[advance_amphibious_warfare]
name = _("Amphibious Warfare")
req1 = "Engineering"
req2 = "Tactics"
flags = ""
graphic = "a.amphibious_warfare"
graphic_alt = "-"
[advance_astronomy]
name = _("Astronomy")
req1 = "Mysticism"
req2 = "Mathematics"
flags = ""
graphic = "a.astronomy"
graphic_alt = "-"
helptext = _("Increases units' vision when in fortresses.")
[advance_atomic_theory]
name = _("Atomic Theory")
req1 = "Chemistry"
req2 = "Refrigeration"
flags = ""
graphic = "a.atomic_theory"
graphic_alt = "-"
[advance_automobile]
name = _("Automobile")
req1 = "Combustion"
req2 = "Steel"
flags = ""
graphic = "a.automobile"
graphic_alt = "-"
[advance_banking]
name = _("Banking")
req1 = "Trade"
req2 = "The Republic"
flags = ""
graphic = "a.banking"
graphic_alt = "-"
[advance_bridge_building]
name = _("Bridge Building")
req1 = "The Wheel"
req2 = "Construction"
flags = "Bridge"
graphic = "a.bridge_building"
graphic_alt = "-"
helptext = _("Allows roads to be built on river tiles.")
[advance_bronze_working]
name = _("Bronze Working")
req1 = "None"
req2 = "None"
flags = ""
graphic = "a.bronze_working"
graphic_alt = "-"
[advance_ceremonial_burial]
name = _("Ceremonial Burial")
req1 = "None"
req2 = "None"
flags = ""
graphic = "a.ceremonial_burial"
graphic_alt = "-"
[advance_chemistry]
name = _("Chemistry")
req1 = "University"
req2 = "Medicine"
flags = ""
graphic = "a.chemistry"
graphic_alt = "-"
[advance_chivalry]
name = _("Chivalry")
req1 = "Feudalism"
req2 = "Horseback Riding"
flags = ""
graphic = "a.chivalry"
graphic_alt = "-"
[advance_code_of_laws]
name = _("Code of Laws")
req1 = "Alphabet"
req2 = "None"
flags = ""
graphic = "a.code_of_laws"
graphic_alt = "-"
[advance_combined_arms]
name = _("Combined Arms")
req1 = "Mobile Warfare"
req2 = "Advanced Flight"
flags = ""
graphic = "a.combined_arms"
graphic_alt = "-"
[advance_combustion]
name = _("Combustion")
req1 = "Refining"
req2 = "Engineering"
flags = ""
graphic = "a.combustion"
graphic_alt = "-"
[advance_communism]
name = _("Communism")
req1 = "Theology"
req2 = "Industrialization"
flags = ""
graphic = "a.communism"
graphic_alt = "-"
[advance_computers]
name = _("Computers")
req1 = "Miniaturization"
req2 = "Radio"
flags = ""
graphic = "a.computers"
graphic_alt = "-"
[advance_conscription]
name = _("Conscription")
req1 = "Democracy"
req2 = "Metallurgy"
flags = ""
graphic = "a.conscription"
graphic_alt = "-"
[advance_construction]
name = _("Construction")
req1 = "Masonry"
req2 = "Iron Working"
flags = ""
graphic = "a.construction"
graphic_alt = "-"
helptext = _("\
Allows Settlers, Migrants, Workers, Engineers, and military infantry \
units to build forts and fortresses.\
")
[advance_currency]
name = _("Currency")
req1 = "Bronze Working"
req2 = "None"
flags = ""
graphic = "a.currency"
graphic_alt = "-"
[advance_democracy]
name = _("Democracy")
req1 = "Banking"
req2 = "Invention"
flags = ""
graphic = "a.democracy"
graphic_alt = "-"
[advance_economics]
name = _("Economics")
req1 = "Banking"
req2 = "University"
flags = ""
graphic = "a.economics"
graphic_alt = "-"
[advance_electricity]
name = _("Electricity")
req1 = "Metallurgy"
req2 = "Theory of Gravity"
flags = ""
graphic = "a.electricity"
graphic_alt = "-"
helptext = _("\
Allows irrigation without an adjacent water source, improves the \
effect of Amphitheaters, and increases city vision radius.\
")
[advance_electronics]
name = _("Electronics")
req1 = "The Corporation"
req2 = "Electricity"
flags = ""
graphic = "a.electronics"
graphic_alt = "-"
[advance_engineering]
name = _("Engineering")
req1 = "Electricity"
req2 = "Steam Engine"
flags = ""
graphic = "a.engineering"
graphic_alt = "-"
[advance_environmentalism]
name = _("Environmentalism")
req1 = "Recycling"
req2 = "Space Flight"
flags = ""
graphic = "a.environmentalism"
graphic_alt = "-"
[advance_espionage]
name = _("Espionage")
req1 = "Communism"
req2 = "Democracy"
flags = ""
graphic = "a.espionage"
graphic_alt = "-"
[advance_explosives]
name = _("Explosives")
req1 = "Gunpowder"
req2 = "Chemistry"
flags = ""
graphic = "a.explosives"
graphic_alt = "-"
[advance_feudalism]
name = _("Feudalism")
req1 = "Iron Working"
req2 = "Monarchy"
flags = ""
graphic = "a.feudalism"
graphic_alt = "-"
[advance_flight]
name = _("Flight")
req1 = "Combustion"
req2 = "Tactics"
flags = "Build_Airborne"
graphic = "a.flight"
graphic_alt = "-"
[advance_fusion_power]
name = _("Fusion Power")
req1 = "Superconductors"
req2 = "Labor Union"
flags = ""
graphic = "a.fusion_power"
graphic_alt = "-"
helptext = _("Makes it possible for Engineers to transform terrains.")
[advance_genetic_engineering]
name = _("Genetic Engineering")
req1 = "Refrigeration"
req2 = "The Corporation"
flags = ""
graphic = "a.genetic_engineering"
graphic_alt = "-"
[advance_guerilla_warfare]
name = _("Guerilla Warfare")
req1 = "Communism"
req2 = "Tactics"
flags = ""
graphic = "a.guerilla_warfare"
graphic_alt = "-"
[advance_gunpowder]
name = _("Gunpowder")
req1 = "Invention"
req2 = "Feudalism"
graphic = "a.gunpowder"
graphic_alt = "-"
[advance_horseback_riding]
name = _("Horseback Riding")
req1 = "None"
req2 = "None"
flags = ""
graphic = "a.horseback_riding"
graphic_alt = "-"
[advance_industrialization]
name = _("Industrialization")
req1 = "Railroad"
req2 = "Banking"
graphic = "a.industrialization"
graphic_alt = "-"
[advance_invention]
name = _("Invention")
req1 = "Bridge Building"
req2 = "Literacy"
flags = ""
graphic = "a.invention"
graphic_alt = "-"
helptext = _("Halves the upgrade cost of your units.")
[advance_iron_working]
name = _("Iron Working")
req1 = "Bronze Working"
req2 = "Warrior Code"
flags = ""
graphic = "a.iron_working"
graphic_alt = "-"
[advance_labor_union]
name = _("Labor Union")
req1 = "Communism"
req2 = "Mobile Warfare"
flags = ""
graphic = "a.labor_union"
graphic_alt = "-"
[advance_laser]
name = _("Laser")
req1 = "Computers"
req2 = "Nuclear Power"
flags = ""
graphic = "a.laser"
graphic_alt = "-"
[advance_leadership]
name = _("Leadership")
req1 = "Chivalry"
req2 = "Gunpowder"
flags = ""
graphic = "a.leadership"
graphic_alt = "-"
[advance_literacy]
name = _("Literacy")
req1 = "Writing"
req2 = "Code of Laws"
flags = ""
graphic = "a.literacy"
graphic_alt = "-"
[advance_machine_tools]
name = _("Machine Tools")
req1 = "Steel"
req2 = "Tactics"
flags = ""
graphic = "a.machine_tools"
graphic_alt = "-"
[advance_magnetism]
name = _("Magnetism")
req1 = "Seafaring"
req2 = "Astronomy"
flags = ""
graphic = "a.magnetism"
graphic_alt = "-"
[advance_map_making]
name = _("Map Making")
req1 = "Alphabet"
req2 = "None"
flags = ""
graphic = "a.map_making"
graphic_alt = "-"
[advance_masonry]
name = _("Masonry")
req1 = "None"
req2 = "None"
flags = ""
graphic = "a.masonry"
graphic_alt = "-"
[advance_mass_production]
name = _("Mass Production")
req1 = "Automobile"
req2 = "The Corporation"
flags = ""
graphic = "a.mass_production"
graphic_alt = "-"
[advance_mathematics]
name = _("Mathematics")
req1 = "Alphabet"
req2 = "Masonry"
flags = ""
graphic = "a.mathematics"
graphic_alt = "-"
[advance_medicine]
name = _("Medicine")
req1 = "Philosophy"
req2 = "Trade"
flags = ""
graphic = "a.medicine"
graphic_alt = "-"
; /* xgettext:no-c-format */
helptext = _("\
Reduces the risk of plague in your cities by 30% of the base chance \
(this is additive with the benefits of any buildings).\
")
[advance_metallurgy]
name = _("Metallurgy")
req1 = "Gunpowder"
req2 = "Mathematics"
flags = ""
graphic = "a.metallurgy"
graphic_alt = "-"
[advance_miniaturization]
name = _("Miniaturization")
req1 = "Combustion"
req2 = "Electronics"
flags = ""
graphic = "a.miniaturization"
graphic_alt = "-"
helptext = _("\
Allows Settlers, Migrants, Workers, Engineers, and Transports to build \
oil platforms on Deep Ocean, required to get the bonus from \
Offshore Platforms.\
")
[advance_mobile_warfare]
name = _("Mobile Warfare")
req1 = "Automobile"
req2 = "Machine Tools"
flags = ""
graphic = "a.mobile_warfare"
graphic_alt = "-"
[advance_monarchy]
name = _("Monarchy")
req1 = "Ceremonial Burial"
req2 = "Code of Laws"
flags = ""
graphic = "a.monarchy"
graphic_alt = "-"
[advance_monotheism]
name = _("Monotheism")
req1 = "Astronomy"
req2 = "Polytheism"
flags = ""
graphic = "a.monotheism"
graphic_alt = "-"
[advance_mysticism]
name = _("Mysticism")
req1 = "Ceremonial Burial"
req2 = "None"
flags = ""
graphic = "a.mysticism"
graphic_alt = "-"
helptext = _("Improves the effect of Temples.")
[advance_navigation]
name = _("Navigation")
req1 = "Invention"
req2 = "Physics"
flags = ""
graphic = "a.navigation"
graphic_alt = "-"
[advance_nuclear_fission]
name = _("Nuclear Fission")
req1 = "Mass Production"
req2 = "Atomic Theory"
flags = ""
graphic = "a.nuclear_fission"
graphic_alt = "-"
[advance_nuclear_power]
name = _("Nuclear Power")
req1 = "Nuclear Fission"
req2 = "Miniaturization"
flags = ""
graphic = "a.nuclear_power"
graphic_alt = "-"
helptext = _("Gives sea units one extra move.")
[advance_philosophy]
name = _("Philosophy")
req1 = "Mysticism"
req2 = "Literacy"
flags = "Bonus_Tech"
bonus_message = _("Great philosophers from all the world join \
your civilization: you learn %s immediately.")
graphic = "a.philosophy"
graphic_alt = "-"
[advance_physics]
name = _("Physics")
req1 = "The Wheel"
req2 = "Magnetism"
flags = ""
graphic = "a.physics"
graphic_alt = "-"
[advance_plastics]
name = _("Plastics")
req1 = "Mass Production"
req2 = "Robotics"
flags = ""
graphic = "a.plastics"
graphic_alt = "-"
[advance_polytheism]
name = _("Polytheism")
req1 = "Horseback Riding"
req2 = "Ceremonial Burial"
flags = ""
graphic = "a.polytheism"
graphic_alt = "-"
[advance_pottery]
name = _("Pottery")
req1 = "None"
req2 = "None"
flags = ""
graphic = "a.pottery"
graphic_alt = "-"
[advance_radio]
name = _("Radio")
req1 = "Flight"
req2 = "Electronics"
flags = ""
graphic = "a.radio"
graphic_alt = "-"
helptext = _("\
Allows Settlers, Migrants, Workers and Engineers to build airstrips, \
airbases and buoys. Allows Transports to build buoys.\
")
[advance_railroad]
name = _("?tech:Railroad")
req1 = "Steam Engine"
req2 = "Metallurgy"
flags = ""
graphic = "a.railroad"
graphic_alt = "-"
helptext = _("\
Allows Settlers, Migrants, Workers and Engineers to upgrade roads to \
railroads.\
"), _("\
For Despotism or Tribal governments, cancels the penalty to worked \
tiles with output greater than 2 (as if all your cities were always \
celebrating).\
")
[advance_recycling]
name = _("Recycling")
req1 = "Mass Production"
req2 = "Sanitation"
flags = ""
graphic = "a.recycling"
graphic_alt = "-"
[advance_refining]
name = _("Refining")
req1 = "Explosives"
req2 = "Industrialization"
flags = ""
graphic = "a.refining"
graphic_alt = "-"
helptext = _("\
Allows Settlers, Migrants, Workers and Engineers to upgrade \
mines to oil wells on Desert and Glacier tiles, for an extra production \
point.\
")
[advance_refrigeration]
name = _("Refrigeration")
req1 = "Sanitation"
req2 = "Electricity"
flags = ""
graphic = "a.refrigeration"
graphic_alt = "-"
helptext = _("\
Allows Settlers, Migrants, Workers and Engineers to upgrade \
irrigation systems to farmland.\
")
[advance_robotics]
name = _("Robotics")
req1 = "Mobile Warfare"
req2 = "Computers"
flags = ""
graphic = "a.robotics"
graphic_alt = "-"
[advance_rocketry]
name = _("Rocketry")
req1 = "Advanced Flight"
req2 = "Miniaturization"
flags = ""
graphic = "a.rocketry"
graphic_alt = "-"
helptext = _("Doubles movement of nuclear units.")
[advance_sanitation]
name = _("Sanitation")
req1 = "Bridge Building"
req2 = "Medicine"
flags = ""
graphic = "a.sanitation"
graphic_alt = "-"
[advance_seafaring]
name = _("Seafaring")
req1 = "Pottery"
req2 = "Map Making"
flags = ""
graphic = "a.seafaring"
graphic_alt = "-"
[advance_space_flight]
name = _("Space Flight")
req1 = "Computers"
req2 = "Rocketry"
flags = ""
graphic = "a.space_flight"
graphic_alt = "-"
[advance_stealth]
name = _("Stealth")
req1 = "Plastics"
req2 = "Space Flight"
flags = ""
graphic = "a.stealth"
graphic_alt = "-"
[advance_steam_engine]
name = _("Steam Engine")
req1 = "Chemistry"
req2 = "Navigation"
flags = ""
graphic = "a.steam_engine"
graphic_alt = "-"
[advance_steel]
name = _("Steel")
req1 = "Engineering"
req2 = "Industrialization"
flags = ""
graphic = "a.steel"
graphic_alt = "-"
[advance_superconductors]
name = _("Superconductors")
req1 = "Space Flight"
req2 = "Laser"
flags = ""
graphic = "a.superconductors"
graphic_alt = "-"
helptext = _("\
Allows Settlers, Migrants, Workers and Engineers to upgrade railroads \
with maglev.\
")
[advance_tactics]
name = _("Tactics")
req1 = "Conscription"
req2 = "Leadership"
flags = ""
graphic = "a.tactics"
graphic_alt = "-"
[advance_the_corporation]
name = _("The Corporation")
req1 = "Economics"
req2 = "Industrialization"
flags = ""
graphic = "a.the_corporation"
graphic_alt = "-"
helptext = _("\
Halves the corruption of trade related to distance from the capital \
(or eliminates it for Federation governments).\
")
[advance_the_republic]
name = _("The Republic")
req1 = "Code of Laws"
req2 = "Literacy"
flags = ""
graphic = "a.the_republic"
graphic_alt = "-"
[advance_the_wheel]
name = _("The Wheel")
req1 = "Horseback Riding"
req2 = "None"
flags = ""
graphic = "a.the_wheel"
graphic_alt = "-"
[advance_theology]
name = _("Theology")
req1 = "Philosophy"
req2 = "Monotheism"
flags = ""
graphic = "a.theology"
graphic_alt = "-"
helptext = _("Improves the effect of Cathedrals.")
[advance_theory_of_gravity]
name = _("Theory of Gravity")
req1 = "Physics"
req2 = "University"
flags = ""
graphic = "a.theory_of_gravity"
graphic_alt = "-"
[advance_trade]
name = _("Trade")
req1 = "Currency"
req2 = "Pottery"
flags = ""
graphic = "a.trade"
graphic_alt = "-"
helptext = _("\
Halves the waste of production related to distance from the capital.\
")
[advance_university]
name = _("University")
req1 = "Mathematics"
req2 = "Philosophy"
flags = ""
graphic = "a.university"
graphic_alt = "-"
[advance_warrior_code]
name = _("Warrior Code")
req1 = "None"
req2 = "None"
flags = ""
graphic = "a.warrior_code"
graphic_alt = "-"
[advance_writing]
name = _("Writing")
req1 = "Alphabet"
req2 = "None"
flags = ""
graphic = "a.writing"
graphic_alt = "-"