Installing Unity Mod Manager into Pathfinder: Kingmaker and Pathfinder: Wrath of the Righteous on Steam Deck
n.b. These are the steps that worked for me. I can't guarantee that they'll work for you, but I don't have any reason to believe they won't. I tested this process on the GOG version of Pathfinder: Wrath of the Righteous installed via Heroic Games Launcher. If you test it and find that different steps are needed, please comment below!
- Install the Pathfinder game of your choice, via Steam or otherwise. Make sure you note down the install location of the game - in my case I installed it to the SD card via Heroic, so it ended up in
/run/media/mmcblk0p1/Heroic/Pathfinder Wrath of the Righteous/. - In Desktop mode, download Unity Mod Manager and extract it wherever you like. I personally put it in
/home/deck/Games/Unity Mod Manager/. - In Steam, still in Desktop mode, navigate to Library > Add A Game > Add a Non-Steam Game > Browse and select UnityModMan