As I said - it depends on the developer. Integrating Steam DRM is completely optional. Here's a list of some of those games: https://steam.fandom.com/wiki/List

As I said - it depends on the developer. Integrating Steam DRM is completely optional. Here's a list of some of those games: https://steam.fandom.com/wiki/List_of_DRM-free_games https://steam.fandom.com/wiki/List_of_DRM-free_games For those games Steam acts as a download/update manager and nothing more. You can run them even without the Steam client.