< [Documentation](../../Readme.md) / [Modding](../Readme.md) / [Bonus Format](../Bonus_Format.md) / Bonus Sources # List of all possible bonus sources - ARTIFACT - ARTIFACT_INSTANCE - OBJECT - CREATURE_ABILITY - TERRAIN_NATIVE - TERRAIN_OVERLAY - SPELL_EFFECT - TOWN_STRUCTURE - HERO_BASE_SKILL - SECONDARY_SKILL - HERO_SPECIAL - ARMY - CAMPAIGN_BONUS - SPECIAL_WEEK - STACK_EXPERIENCE - COMMANDER - GLOBAL - OTHER