Three switches and a washer in Space
A downloadable game for Windows, macOS, and Linux
[note: I have no idea if the mac and linux versions are actually working. They also look a bit different, because I never bothered updating them...]
The first game I ever made.
Move around with WASD, jump with Space, run with shift, look around with your mouse.
It actually tries to demonstrate something very interesting. However I can't tell you what it's about, since it would make playing the game obsolete. Feel free to get in touch with me, if you want to know more.
'Kool Kats' by Kevin MacCleod
Noisy Crips by chilled35
Ding Ding Small Bell by JohnsonBrandEditing
just unzip the file and launch the game.
Should you run into any problems, I'm afraid that I can't help, because this project is really old and I forgot how to use Unity...