[bilkow]

Altough incomplete, PCGamingWiki has info on whether games work without steam DRM. AFAIK they are usually tested by moving the game folder and running without opening Steam.

https://www.pcgamingwiki.com/wiki/The_big_list_of_DRM-free_g...

e.g. https://www.pcgamingwiki.com/wiki/Hades