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Engine internals. No scripting access today. Listed for contributors and for understanding the game; using it needs a change to the game library.

Game

Function	Signature (Linux)	Symbol	Current	From Lua	Notes
Climate::Manager::ApplyOneOffEffects	`void Game::Climate::Manager::ApplyOneOffEffects(Game::Climate::Manager* this, const Game::Climate::OneOff& kOneOff, int& iTilesDamaged, int& iPopLost, int& iUnitsLost, int& iFertilityAdded)`	`0x1baa40`	`0x1b9380`	no	edit_call, writes
Climate::Manager::ApplyStormEffects	`void Game::Climate::Manager::ApplyStormEffects(Game::Climate::Manager* this, Game::Climate::Storm& kStorm, int iTurnStrength, int& iTilesDamaged, int& iPopLost, int& iUnitsLost, int& iFertilityAdded)`	`0x1bb1d0`	`0x1b9b10`	no	edit_call, writes
Culture::AddRelic ★	`GreatWorkTypes Game::Culture::AddRelic(Game::Culture* this, City::Instance* pkCity, BuildingTypes eBuilding, int iSlot, RelicSource eRelicSource)`	`0x1c7760`	`0x1c6b80`	no	analysed
Culture::BuildCivics	`void Game::Culture::BuildCivics(Game::Culture* this)`	`0x1c7da0`	`0x1c71c0`	Dev CE (experimental): Game.BuildCivics	edit_call, writes
Culture::FindOrAddGreatWork ★	`int Game::Culture::FindOrAddGreatWork(Game::Culture* this, GreatWorkTypes eGreatWorkType)`	`0x1c8f00`	`0x1c80e0`	via CE: CultureManager.FindOrAddGreatWork	analysed
Culture::SetGreatWorkPlayer ★	`void Game::Culture::SetGreatWorkPlayer(Game::Culture* this, int iIndex, PlayerTypes ePlayer)`	`0x1c9890`	`0x1c8c80`	via CE: CultureManager.SetGreatWorkPlayer	analysed, edit_call, writes
DiplomaticRelations::AddGrievanceLogEntry	`void Game::DiplomaticRelations::AddGrievanceLogEntry(Game::DiplomaticRelations* this, Game::GrievanceLogItem& kItem, bool bAppend)`	`0x1cf2e0`	`0x1ce980`	no	edit_call, writes
DiplomaticRelations::ChangeGrievanceScore	`void Game::DiplomaticRelations::ChangeGrievanceScore(Game::DiplomaticRelations* this, PlayerTypes a, PlayerTypes b, int iNumGrievances)`	`0x1cf3a0`	`0x1cea40`	via CE: GameDiplomacy.ChangeGrievanceScore	edit_call, writes
DiplomaticRelations::SetAtWar	`void Game::DiplomaticRelations::SetAtWar(Game::DiplomaticRelations* this, PlayerTypes a, PlayerTypes b, WarTypes war)`	`0x1d39d0`	`0x1d31b0`	Dev CE (experimental): GameDiplomacy.SetAtWar	edit_call, writes
DiplomaticRelations::SetIsInDefensivePact	`void Game::DiplomaticRelations::SetIsInDefensivePact(Game::DiplomaticRelations* this, PlayerTypes a, PlayerTypes b, bool pact)`	`0x1d4450`	`0x1d3c30`	Dev CE (experimental): GameDiplomacy.SetIsInDefensivePact	edit_call, signal, writes
DiplomaticRelations::SetJointWarTarget	`void Game::DiplomaticRelations::SetJointWarTarget(Game::DiplomaticRelations* this, PlayerTypes initiator, PlayerTypes partner, PlayerTypes target)`	`0x1d45d0`	`0x1d3db0`	Dev CE (experimental): GameDiplomacy.SetJointWarTarget	edit_call, writes
DiplomaticRelations::SetSharesSuzerain	`void Game::DiplomaticRelations::SetSharesSuzerain(Game::DiplomaticRelations* this, PlayerTypes a, PlayerTypes b, bool c)`	`0x1d49f0`	`0x1d41d0`	Dev CE (experimental): GameDiplomacy.SetSharesSuzerain	edit_call, writes; called by EFFECT_ALLIANCE_SHARE_SUZERAIN
Economic::Manager::GetTourismFromMonopolies	`int Game::Economic::Manager::GetTourismFromMonopolies(const Game::Economic::Manager* this, PlayerTypes ePlayer)`	`0x62d550`	`0x62dd20`	via CE: EconomicManager.GetTourismFromMonopolies
Economic::Manager::RemoveCorporation	`void Game::Economic::Manager::RemoveCorporation(Game::Economic::Manager* this, PlayerTypes ePlayer, PlotCoord kLocation)`	`0x62f300`	`0x62fb80`	no	edit_call, writes
Economic::Manager::RemoveIndustry	`void Game::Economic::Manager::RemoveIndustry(Game::Economic::Manager* this, PlayerTypes ePlayer, PlotCoord kLocation)`	`0x62f3f0`	`0x62fc70`	no	edit_call, writes
Eras::ChangeExtraScorePerPrideMoment	`void Game::Eras::ChangeExtraScorePerPrideMoment(Game::Eras* this, PlayerTypes ePlayer, int iDelta)`	`0x1e2b00`	`0x1e2260`	Dev CE (experimental): GameEras.ChangeExtraScorePerPrideMoment	edit_call, writes; called by EFFECT_ADJUST_PLAYER_ERA_SCORE_PER_PRIDE_MOMENT
Eras::ChangePlayerAlwaysAllowedCommemorationQuestCount	`void Game::Eras::ChangePlayerAlwaysAllowedCommemorationQuestCount(Game::Eras* this, PlayerTypes ePlayer, int iAmount)`	`0x1e2b50`	`0x1e22b0`	Dev CE (experimental): GameEras.ChangePlayerAlwaysAllowedCommemorationQuestCount	edit_call, writes; called by EFFECT_ADJUST_PLAYER_ALWAYS_ALLOW_COMMEMORATION_QUEST_COUNT
Eras::ChangePlayerEraScorePerAerodromeBuildingConstructed	`void Game::Eras::ChangePlayerEraScorePerAerodromeBuildingConstructed(Game::Eras* this, PlayerTypes ePlayer, int iAmount)`	`0x1e2ba0`	`0x1e2300`	Dev CE (experimental): GameEras.ChangePlayerEraScorePerAerodromeBuildingConstructed	edit_call, event, writes; called by EFFECT_ADJUST_PLAYER_ERA_SCORE_PER_AERODROME_BUILDING_CONSTRUCTED
Eras::ChangePlayerEraScorePerArmyKilled	`void Game::Eras::ChangePlayerEraScorePerArmyKilled(Game::Eras* this, PlayerTypes ePlayer, int iAmount)`	`0x1e2c20`	`0x1e2380`	Dev CE (experimental): GameEras.ChangePlayerEraScorePerArmyKilled	edit_call, event, writes; called by EFFECT_ADJUST_PLAYER_ERA_SCORE_PER_ARMY_KILLED
Eras::ChangePlayerEraScorePerArtifactExtracted	`void Game::Eras::ChangePlayerEraScorePerArtifactExtracted(Game::Eras* this, PlayerTypes ePlayer, int iAmount)`	`0x1e2ca0`	`0x1e2400`	Dev CE (experimental): GameEras.ChangePlayerEraScorePerArtifactExtracted	edit_call, event, writes; called by EFFECT_ADJUST_PLAYER_ERA_SCORE_PER_ARTIFACT_EXTRACTED
Eras::ChangePlayerEraScorePerCityReligionConversion	`void Game::Eras::ChangePlayerEraScorePerCityReligionConversion(Game::Eras* this, PlayerTypes ePlayer, int iAmount)`	`0x1e2d20`	`0x1e2480`	Dev CE (experimental): GameEras.ChangePlayerEraScorePerCityReligionConversion	edit_call, event, writes; called by EFFECT_ADJUST_PLAYER_ERA_SCORE_PER_CITY_RELIGION_CONVERSION
Eras::ChangePlayerEraScorePerCivicBoost	`void Game::Eras::ChangePlayerEraScorePerCivicBoost(Game::Eras* this, PlayerTypes ePlayer, int iAmount)`	`0x1e2da0`	`0x1e2500`	Dev CE (experimental): GameEras.ChangePlayerEraScorePerCivicBoost	edit_call, event, writes; called by EFFECT_ADJUST_PLAYER_ERA_SCORE_PER_CIVIC_BOOST
Eras::ChangePlayerEraScorePerContinentDiscovered	`void Game::Eras::ChangePlayerEraScorePerContinentDiscovered(Game::Eras* this, PlayerTypes ePlayer, int iAmount)`	`0x1e2e20`	`0x1e2580`	Dev CE (experimental): GameEras.ChangePlayerEraScorePerContinentDiscovered	edit_call, event, writes; called by EFFECT_ADJUST_PLAYER_ERA_SCORE_PER_CONTINENT_DISCOVERED
Eras::ChangePlayerEraScorePerCorpsKilled	`void Game::Eras::ChangePlayerEraScorePerCorpsKilled(Game::Eras* this, PlayerTypes ePlayer, int iAmount)`	`0x1e2ea0`	`0x1e2600`	Dev CE (experimental): GameEras.ChangePlayerEraScorePerCorpsKilled	edit_call, event, writes; called by EFFECT_ADJUST_PLAYER_ERA_SCORE_PER_CORPS_KILLED
Eras::ChangePlayerEraScorePerCultureBuildingConstructed	`void Game::Eras::ChangePlayerEraScorePerCultureBuildingConstructed(Game::Eras* this, PlayerTypes ePlayer, int iAmount)`	`0x1e2f20`	`0x1e2680`	Dev CE (experimental): GameEras.ChangePlayerEraScorePerCultureBuildingConstructed	edit_call, event, writes; called by EFFECT_ADJUST_PLAYER_ERA_SCORE_PER_CULTURE_BUILDING_CONSTRUCTED
Eras::ChangePlayerEraScorePerCurrentCivic	`void Game::Eras::ChangePlayerEraScorePerCurrentCivic(Game::Eras* this, PlayerTypes ePlayer, int iAmount)`	`0x1e2fa0`	`0x1e2700`	Dev CE (experimental): GameEras.ChangePlayerEraScorePerCurrentCivic	edit_call, event, writes; called by EFFECT_ADJUST_PLAYER_ERA_SCORE_PER_CURRENT_CIVIC
Eras::ChangePlayerEraScorePerCurrentTech	`void Game::Eras::ChangePlayerEraScorePerCurrentTech(Game::Eras* this, PlayerTypes ePlayer, int iAmount)`	`0x1e3020`	`0x1e2780`	Dev CE (experimental): GameEras.ChangePlayerEraScorePerCurrentTech	edit_call, event, writes; called by EFFECT_ADJUST_PLAYER_ERA_SCORE_PER_CURRENT_TECH
Eras::ChangePlayerEraScorePerDistrictConstructed	`void Game::Eras::ChangePlayerEraScorePerDistrictConstructed(Game::Eras* this, PlayerTypes ePlayer, int iAmount)`	`0x1e30a0`	`0x1e2800`	Dev CE (experimental): GameEras.ChangePlayerEraScorePerDistrictConstructed	edit_call, event, writes; called by EFFECT_ADJUST_PLAYER_ERA_SCORE_PER_DISTRICT_CONSTRUCTED
Eras::ChangePlayerEraScorePerGreatPersonEarned	`void Game::Eras::ChangePlayerEraScorePerGreatPersonEarned(Game::Eras* this, PlayerTypes ePlayer, int iAmount)`	`0x1e3120`	`0x1e2880`	Dev CE (experimental): GameEras.ChangePlayerEraScorePerGreatPersonEarned	edit_call, event, writes; called by EFFECT_ADJUST_PLAYER_ERA_SCORE_PER_GREAT_PERSON_EARNED
Eras::ChangePlayerEraScorePerIndustrialBuildingConstructed	`void Game::Eras::ChangePlayerEraScorePerIndustrialBuildingConstructed(Game::Eras* this, PlayerTypes ePlayer, int iAmount)`	`0x1e31a0`	`0x1e2900`	Dev CE (experimental): GameEras.ChangePlayerEraScorePerIndustrialBuildingConstructed	edit_call, event, writes; called by EFFECT_ADJUST_PLAYER_ERA_SCORE_PER_INDUSTRIAL_BUILDING_CONSTRUCTED
Eras::ChangePlayerEraScorePerNaturalWonderDiscovered	`void Game::Eras::ChangePlayerEraScorePerNaturalWonderDiscovered(Game::Eras* this, PlayerTypes ePlayer, int iAmount)`	`0x1e3220`	`0x1e2980`	Dev CE (experimental): GameEras.ChangePlayerEraScorePerNaturalWonderDiscovered	edit_call, event, writes; called by EFFECT_ADJUST_PLAYER_ERA_SCORE_PER_NATURAL_WONDER_DISCOVERED
Eras::ChangePlayerEraScorePerNonBarbarianUnitKilledByGDR	`void Game::Eras::ChangePlayerEraScorePerNonBarbarianUnitKilledByGDR(Game::Eras* this, PlayerTypes ePlayer, int iAmount)`	`0x1e32a0`	`0x1e2a00`	Dev CE (experimental): GameEras.ChangePlayerEraScorePerNonBarbarianUnitKilledByGDR	edit_call, event, writes; called by EFFECT_ADJUST_PLAYER_ERA_SCORE_PER_NON_BARBARIAN_UNIT_KILLED_BY_GDR
Eras::ChangePlayerEraScorePerNonBarbarianUnitSeaKilled	`void Game::Eras::ChangePlayerEraScorePerNonBarbarianUnitSeaKilled(Game::Eras* this, PlayerTypes ePlayer, int iAmount)`	`0x1e3320`	`0x1e2a80`	Dev CE (experimental): GameEras.ChangePlayerEraScorePerNonBarbarianUnitSeaKilled	edit_call, event, writes; called by EFFECT_ADJUST_PLAYER_ERA_SCORE_PER_NON_BARBARIAN_UNIT_SEA_KILLED
Eras::ChangePlayerEraScorePerScienceBuildingConstructed	`void Game::Eras::ChangePlayerEraScorePerScienceBuildingConstructed(Game::Eras* this, PlayerTypes ePlayer, int iAmount)`	`0x1e33a0`	`0x1e2b00`	Dev CE (experimental): GameEras.ChangePlayerEraScorePerScienceBuildingConstructed	edit_call, event, writes; called by EFFECT_ADJUST_PLAYER_ERA_SCORE_PER_SCIENCE_BUILDING_CONSTRUCTED
Eras::ChangePlayerEraScorePerSpySuccessfulMission	`void Game::Eras::ChangePlayerEraScorePerSpySuccessfulMission(Game::Eras* this, PlayerTypes ePlayer, int iAmount)`	`0x1e3420`	`0x1e2b80`	Dev CE (experimental): GameEras.ChangePlayerEraScorePerSpySuccessfulMission	edit_call, event, writes; called by EFFECT_ADJUST_PLAYER_ERA_SCORE_PER_SPY_SUCCESSFUL_MISSION
Eras::ChangePlayerEraScorePerTechBoost	`void Game::Eras::ChangePlayerEraScorePerTechBoost(Game::Eras* this, PlayerTypes ePlayer, int iAmount)`	`0x1e34a0`	`0x1e2c00`	Dev CE (experimental): GameEras.ChangePlayerEraScorePerTechBoost	edit_call, event, writes; called by EFFECT_ADJUST_PLAYER_ERA_SCORE_PER_TECH_BOOST
Eras::ChangePlayerEraScorePerTradeRouteCompleted	`void Game::Eras::ChangePlayerEraScorePerTradeRouteCompleted(Game::Eras* this, PlayerTypes ePlayer, int iAmount)`	`0x1e3520`	`0x1e2c80`	Dev CE (experimental): GameEras.ChangePlayerEraScorePerTradeRouteCompleted	edit_call, event, writes; called by EFFECT_ADJUST_PLAYER_ERA_SCORE_PER_TRADE_ROUTE_COMPLETED
Eras::ChangePlayerEraScorePerUnitPromotionEarned	`void Game::Eras::ChangePlayerEraScorePerUnitPromotionEarned(Game::Eras* this, PlayerTypes ePlayer, int iAmount)`	`0x1e35a0`	`0x1e2d00`	Dev CE (experimental): GameEras.ChangePlayerEraScorePerUnitPromotionEarned	edit_call, event, writes; called by EFFECT_ADJUST_PLAYER_ERA_SCORE_PER_UNIT_PROMOTION_EARNED
Eras::RecalculateThresholdShifts	`void Game::Eras::RecalculateThresholdShifts(Game::Eras* this, PlayerTypes ePlayer, EraTypes eCurrentEra)`	`0x1e76a0`	`0x1e6e00`	Dev CE (experimental): GameEras.RecalculateThresholdShifts	edit_call, event, writes
Eras::SetCurrentEra	`void Game::Eras::SetCurrentEra(Game::Eras* this, EraTypes eEra)`	`0x1e8660`	`0x1e7eb0`	Dev CE (experimental): GameEras.SetCurrentEra	signal, event, writes
Eras::SetDarkAge	`void Game::Eras::SetDarkAge(Game::Eras* this, PlayerTypes ePlayer, bool bIsDarkAge)`	`0x1e8750`	`0x1e7fa0`	Dev CE (experimental): GameEras.SetDarkAge	edit_call, signal, writes
Eras::SetGoldenAge	`void Game::Eras::SetGoldenAge(Game::Eras* this, PlayerTypes ePlayer, bool bIsGoldenAge)`	`0x1e87f0`	`0x1e8040`	Dev CE (experimental): GameEras.SetGoldenAge	edit_call, signal, writes
Eras::SetMinScoreForExtraEraScore	`void Game::Eras::SetMinScoreForExtraEraScore(Game::Eras* this, PlayerTypes ePlayer, int iNewValue)`	`0x1e8890`	`0x1e80e0`	Dev CE (experimental): GameEras.SetMinScoreForExtraEraScore	edit_call, writes; called by EFFECT_ADJUST_PLAYER_ERA_SCORE_PER_PRIDE_MOMENT
Gossip::Manager::AddGossipItem	`void Game::Gossip::Manager::AddGossipItem(Game::Gossip::Manager* this, OccurrenceRef pkItem)`	`0x1f6a60`	`0x1f59f0`	no	writes
GreatPeople::AwardFreePersonByClass	`bool Game::GreatPeople::AwardFreePersonByClass(Game::GreatPeople* this, PlayerTypes ePlayer, GreatPersonClassTypes eClass)`	`0x209fd0`	`0x208fd0`	Dev CE (experimental): GameGreatPeople.AwardFreePersonByClass	edit_call, writes; called by EFFECT_GRANT_GREAT_PERSON_CLASS_IN_CITY
History::Moment::SetExtraData	`void Game::History::Moment::SetExtraData(Game::History::Moment* this, MomentDataTypes eDataType, int iData)`	`0x217330`	`0x215e40`	no	writes
Instance::DecrementGameStateLock	`uint Game::Instance::DecrementGameStateLock(Game::Instance* this)`	`0x63cdd0`	`0x63cee0`	Dev CE (experimental): Game.DecrementGameStateLock	signal, writes
Instance::IncrementGameStateLock	`uint Game::Instance::IncrementGameStateLock(Game::Instance* this)`	`0x63d090`	`0x63d1a0`	Dev CE (experimental): Game.IncrementGameStateLock	writes
NationalParks::DesignatePark	`void Game::NationalParks::DesignatePark(Game::NationalParks* this, PlayerTypes ePlayer, PlotCoord kBaseTile)`	`0x236180`	`0x235830`	via CE: NationalParks.DesignatePark
NationalParks::FindPark	`const Game::ParkData* Game::NationalParks::FindPark(const Game::NationalParks* this, PlotCoord kLocation)`	`0x236c70`	`0x2362c0`	via CE: NationalParks.FindPark
NationalParks::RestoreVisualState	`bool Game::NationalParks::RestoreVisualState(Game::NationalParks* this, const Game::ParkData* pkPark)` (+1 overload)	`0x239300`	`0x2389f0`	via CE: NationalParks.RestoreVisualState
RandomEvents::PillageDistrict	`int Game::RandomEvents::PillageDistrict(Game::RandomEvents* this, int iPlotIndex, PlayerTypes& iAffectedPlayer)` (+1 overload)	`0x2401d0`	`0x23f880`	no	edit_call, writes
RandomEvents::PillageImprovement	`int Game::RandomEvents::PillageImprovement(Game::RandomEvents* this, int iPlotIndex, PlayerTypes& iAffectedPlayer)` (+1 overload)	`0x240470`	`0x23fb20`	no	writes
Techs::BuildTechs	`void Game::Techs::BuildTechs(Game::Techs* this)`	`0x250f90`	`0x2502e0`	Dev CE (experimental): Game.BuildTechs	edit_call, writes

Notes (★)

Game::Culture::AddRelic

Chooses a relic, creates its game-wide record, places it in a slot, and announces it. Its only caller is Player::Religion::CreateRelic.

Selection among the pool is random (weighted). (Medium.) [inferred; evidence: static-analysis — decompilation read in Ghidra]
Because AddGreatWorkToSlot silently does nothing for an unknown building entry or an out-of-range slot (see its note), calling AddRelic with a valid city, a relic-holding building type and an out-of-range slot should create the record and skip placement. The notification would still say the relic was placed. Untested. (Low-medium.) [inferred; evidence: static-analysis — decompilation read in Ghidra]
Called with a valid city, a relic-holder building type and an out-of-range slot, AddRelic creates the record and notifies, but places the relic in no slot (it ends in limbo). This is what the archive hook relies on; verified with the hut xN test command and reload. [verified; evidence: runtime — Observed in-game (2026-09-30, single player)]

Game::Culture::FindOrAddGreatWork

Returns the position (list index) of the game-wide record for a great work type, creating the record if none exists.

Scans the game-wide list (begin at Culture+0x118, end at +0x120, 0x18 bytes per record) for a record whose first field equals type; if found, returns its position. [verified; evidence: static-analysis — decompilation read in Ghidra]
Otherwise appends a new record through the tracked accessor (edit() on the list at Culture+0x108) and returns the new position. [verified; evidence: static-analysis — decompilation read in Ghidra]
Record layout (0x18 bytes): +0x00 great work type (u32); +0x04 player (s32, initialised to -1); +0x08 the game's current turn at creation (read from the game instance at +0xc0); +0x10 a text string, initialised empty. [verified; evidence: static-analysis — decompilation read in Ghidra]
The type is an index into the great work definition collection (Definitions::GetGreatWorkDefinitions). [verified; evidence: static-analysis — decompilation read in Ghidra]
The "Created in " text comes from the record's creation-turn field (fits the observation: two works created one turn apart differ by 50 years). (Medium.) [inferred; evidence: static-analysis — decompilation read in Ghidra]
The "Created by" text comes from the string at +0x10, which normal creation code (great people, relics, artifacts) probably fills in; works spawned only with this function have it empty. (Medium.) [inferred; evidence: static-analysis — decompilation read in Ghidra]
The player field (+0x04) starts at -1 and is set by SetGreatWorkPlayer; see that note. (Medium.) [inferred; evidence: static-analysis — decompilation read in Ghidra]
An archive that only remembers a work's type would lose its creation turn, creator text and player. To restore a work faithfully, keep the whole record, or leave the record in the game-wide list and only move the slot (what the experiments did). [inferred; evidence: static-analysis — decompilation read in Ghidra]
Creating a work with this function alone is enough to make it exist in limbo, but it will lack the creator text. [inferred; evidence: static-analysis — decompilation read in Ghidra]
Called through the Frida tool for works 0 and 1: created records at list indexes 0 and 1; a second call with an existing type returned the existing index and added nothing. [verified; evidence: runtime — Observed in-game (2026-09-29/30)]
A tooltip for a work created this way reads "Created in 950 BC" (the other, created a turn earlier, 1000 BC) and shows an empty "Created by". [verified; evidence: runtime — Observed in-game (2026-09-29/30)]

Game::Culture::SetGreatWorkPlayer

Writes a player id into the game-wide great work record.

Calls edit() on the tracked list at Culture+0x108, then writes the player at record[index0x18 + 4]. [verified; evidence: static-analysis — decompilation read in Ghidra]*
The player field is initialised to -1 when the record is created (), so this call is what fills it in. [verified; evidence: static-analysis — decompilation read in Ghidra]
Not called in the trade path (Enact, PostEnact, City::Manager::Transfer). Called from GrantRandomProduct, CreateHeroEpicGreatWork and Player::Operations::Manager::Process. [verified; evidence: static-analysis — decompilation read in Ghidra]
That field is probably the creator of the work, not its current holder; Game.GetGreatWorkPlayer most likely returns the creator and does not change on trade. (Medium; inferred from callers only.) [inferred; evidence: static-analysis — decompilation read in Ghidra]
Do not read this as 'who owns it now'. Use IsInCity across the player's cities for the current holder. [inferred; evidence: static-analysis — decompilation read in Ghidra]
On a real save from a forum report, the record "player" field of works held by other civilizations was the creator, not the holder; the field is also used for theming, so overwriting it with the holder is not safe. [verified; evidence: runtime — Observed in-game (real save, 2026-10-01)]