Hi, thanks for buying from us.
Are you running on Steam or are you running the DRM-free download? If you're comfortable with it, it would be best to register all your products on Steam via rimworldgame.com/getmygame - then, just install and play on Steam as usual.
Sometimes Steam breaks files and fails to fix them even on verify. In these cases you need to go into the actual file explorer and delete all the game files and files for all expansions to force it to re-download everything.
You can email [[email protected]](mailto:...
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