Interesting concept, but putting a time limit on the demo is pretty annoying for a game that's still in such early development. If you want people to really test out your game, don't kick them out after a short time. Also, it runs pretty laggy on my computer, which should be able to handle these graphics. Had to turn graphics to lower settings to not have severe input lag.
Windows 10, Intel I5-7300HQ (2.5 GHz, 4-core), 8 GB RAM, NVidia GTX 1050 Ti