The game acts like it will install then fails to complete teh installation stating "Servers are unreachable at this time."
I've had to restart my game twice now. On my third attempt, I just stopped playing. After I get to a point in the game (No spoilers) It takes away my radiation detector and teleportation gun for no reason, they just disappear, then I can't leave a mission. I just get stuck in the same mission with no way of leaving the mission front. As far as I'm concerned, this game is still in Alpha.
