📥 How to Install Assassin's Creed III Mods on Steam Deck
Install Steps
1. Install a mod manager — Install Mod Organizer 2 (native Linux build) or Vortex via Lutris on the Steam Deck.
2. Install the script extender — No script extender needed for Assassin's Creed III.
3. Add mods — Download mods using "Mod Manager Download" buttons and install through MO2/Vortex.
4. Enable + deploy — Enable the mods, click Deploy, and let the manager sort load order.
5. Launch through the manager — Launch Assassin's Creed III through MO2/Vortex (not the Steam shortcut), using the native loader.
6. Proton for Windows-only tools — For Windows-only tools (LOOT, xEdit), run them through Proton via Lutris or Steam.
📁 Game File Location
On the Steam Deck, the game installs to ~/.local/share/Steam/steamapps/common/assassinscreediii/ — script extenders and mods go here.
📱 Steam Deck Notes
The Deck is the lightest handheld — stick to 1K textures, skip ENB entirely, and use FPS patches. Proton runs most Windows mods, but script extenders (SKSE/F4SE/SMAPI) need the native Linux launcher or a compatibility tweak.
❓ Install FAQ
Can I mod Assassin's Creed III on the Steam Deck?
The Deck is the lightest handheld — stick to 1K textures, skip ENB entirely, and use FPS patches. Proton runs most Windows mods, but script extenders (SKSE/F4SE/SMAPI) need the native Linux launcher or a compatibility tweak.
Do I need a script extender for Assassin's Creed III on the Steam Deck?
No script extender is required for Assassin's Creed III mods.