It's a demo of Tetracosm! Give it a shot if you want.
This demo's a little old, but pretty close to what the Steam release is. It's missing the Steam features and a tiny bit of polish. And most of the game, cuz, you know, it's just a demo. But there's still a good hour or so of game there.
It showcases the first chapter of what the game is. If you beat the demo you get a sort of free mode to mess with all the abilities in the game. Have fun with it!