As far as the PCGamingWiki API is aware, there are 810 DRM-free Steam games not on GOG.
Here's a complete list: https://termbin.com/jb07
I made a curator with (almost) every DRM-free game on Steam
I recently published the first pre-release of a plugin that displays your project's version using git describe. Feedback wanted!
Haunting Hijinx launches tomorrow! It's a free and open-source remake of the ghost minigame from Nintendo Land.
Has Nintendo shut down a game because it cloned the gameplay of one of their games?
Name ideas for my game
How do Godot 4's multiplayer nodes work under the hood?
Yes, I'll regularly run the script I wrote to add new games from the wiki.
edit: I also plan to make the script available once it's in a better state than "let's spend a few hours slapping stuff together."