Compatibility

Area	Current position
Operating system	Windows; the optional launcher supports Windows 10 and 11
Mod framework	BepInEx 5.4.23.5 for the mod-only package; bundled by the full package
Game version	Built from the current EOR FTK2 data snapshot; EOR records the actual Application.version in diagnostics
Single-player	Supported and exposes all normal EOR systems
Multiplayer	Supported with strict version/config/content matching; custom town specialists are disabled online
DLC	EOR data includes current FTK2 expansion-aware records; all players should have matching DLC availability
Existing saves	Often loadable, but new content-generation settings are safest on a new campaign
Other mods	Not guaranteed; mods patching the same character, market, quest, UI, combat, or network systems can conflict
Community Toolkit	Not required for players and not bundled as a separate dependency

EOR uses extensive runtime patches and merged data. “Loads successfully” is not proof that another gameplay mod is compatible. Test a new save and keep backups when combining overhauls.