I've been teaching myself the Godot game engine. I learn best by doing something real so I created a functional game as my learning project. I decided to release it on Steam and Itch.io. It's called Escape from the Archives:
Steam:
https://store.steampowered.com/app/3451940/Escape_from_the_Archives/?beta=0
Itch.io
https://rabbit-fighter.itch.io/escape-from-the-archives
If you try it out, please let me know what you think.