Wait, you can easily and officially run these game without internet and without Steam client installed?

Could you point me to these DRM free Steam games? I have the impression that games from Steam doesnt work without actually Steam.

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

For those games Steam acts as a download/update manager and nothing more. You can run them even without the Steam client.

Thank you, I had no idea.