Even reading many negative comments reporting bugs everywhere, I tried to install the client to play SuperTotalCarnage. At first I didn't understand why there was the "building" button and since I couldn't start the game I loaded it directly from the folder, the game started and I played 3 games without problems. At the fourth, after a while, the game froze and my pc completely blocked me, I had to restart everything. Once the client was reopened instead of the building button there were play and uninstall, I started the game but it crashed again after a while. I hope you can fix the problems as soon as possible because I really like what you have created and I'm sorry I can't play.
[Edit] I tryed again to start the game from the folder and it seems stable, i hope this helps.