Modding - CK3 Wiki

Mod] ResPublica - Playable Republics (unfinished)

CK3 Dev Diary #37 - Making Mods

TOOL] Map Filler for CK3, Page 4

Is it possible to subbstitute a coat of arms in the game files?

CK3 Modding] Changing Title Flags/Coat of Arms

CK3AGOT - CK3 Wiki

Crusader Kings 3 wiki, Page 2

Scopes - CK3 Wiki

Way of Kings - CK3 Wiki

Character modding - Crusader Kings II Wiki

Map modding - CK3 Wiki

GitHub - amtep/ck3-tiger: Checks Crusader Kings 3 user mod files for common mistakes and warns about them.