The new Unity UI came out, so I spent a few days and threw this together to learn it. It's not really a game-game, but it is a place you can wander around and interact with things. Mostly lights.

There's even a few things that vaguely resemble puzzles, if you squint! 

I guess the category would be "walking simulator".

This is unoptimized, and it's not a project so much as a proof of concept. But feel free to download it and wander around. It's fun to see what you can throw together in Unity in ~10 hours.