Hi! It's great to see an attempt at a 3d multiplayer game (this is the first one I've seen!)
I think you might have been a little toooo ambitious with this. It's pretty buggy trying to get in a game with friends, flight didn't feel very spaceship-y, and the assets could have done with a little refining. In general, this could have done with a much tighter scope.
Having said that, again, it's a HUGE achievement that you managed to get a multiplayer game up and running in a short time. For that reason alone, this is definitely something to be proud of.
Good luck & looking forward to seeing more submissions in the future! :D