Maybe this link will help: https://forums.obsidian.net/topic/121363-mod-support-on-epic-games/ It appears that the Epic games store version has a different version number than the Steam copy, which creates some complications. Likely because of how it's more uniformly bundled vs Steam. I'm currently installing the game right now to see if I can get it to work. Will be trying later tonight. Edit: I tried it and couldn't get it to work. According to other users on the mods comment section, the Epic Game Store's different game version makes it incompatible. The mod author also says in the description that non-steam copies are not supported - as the mod doesn't work with those. It apparently does work with the version distributed through Amazon Primes game service - but those are setup exactly the same as the Steam versions as far as I can tell.