Total War: Warhammer III Modding on OpenMods

Creative Assembly's licensed grand fantasy mod platform

Total War: Warhammer III (2022) is Creative Assembly's third entry in the Warhammer Fantasy trilogy. The Immortal Empires combined campaign (free update unifying maps across all three games) makes WH3 the only entry worth modding seriously in 2026, content from WH1 and WH2 flows in if you own those games, but the modding centre of gravity is WH3.

The mod scene is dominated by Steam Workshop plus the Total War Modding Tool (Pack File Manager / RPFM) for power users. Faction overhauls, new lord packs, balance reworks, and large UI mods are the headliners.

The toolchain

• Steam Workshop: primary distribution.
• Mod Manager (in-game launcher tab): toggle subscribed mods, set load order.
• RPFM (Rusty Pack File Manager): community tool for editing the game's .pack files. Used by mod authors.
• Total War Assembly Kit: CA's official authoring tool, free with the game. Heavyweight; closer to a full SDK than a mod editor.

What you'll find on OpenMods

WH3 mods live primarily on Workshop. GitHub-published WH3 mods are typically the largest collaborative projects (mod packs, frameworks). OpenMods catalogues these.

Practical notes

• Mod compatibility matters. WH3's complex unit roster + 20+ factions means content mods often conflict. Read each mod's compatibility notes.
• Patch updates routinely break mods. CA ships major patches multiple times a year. Most popular mods are updated within days.
• Mod load order in the launcher. The in-game launcher's Mod Manager tab lets you reorder. Later-loaded mods override earlier ones.
• Immortal Empires vs Realm of Chaos. Most mods support both campaigns but always check.