How to enable Steam overlay while playing Dungeons of Dredmor?
Solution 1:
As written here by developers is a known bug.
Steam Overlay: Looking in to this one. It’d be quite ideal to get this working.
Update: It will be fixed in next patch.
Yes! Steam overlay now confirmed to be working with the latest patch. (tweet)
When the patch 1.0.3 will be live add -opengl to Steam launch parameters to enable Steam overlay (experimental)