I am also experiencing random crashes when I hit "end turn". An error message appears saying "Error Unknown".
I finally launched a game and set it to allow the entire tech tree to be seen. I was honestly a little disappointed that the super awesome and lengthy tech tree appears just to be the same half a dozen things being upgraded over and over (unit power, habitat, moral, science, money). There are several awesome things in there like operations, naval transport, and some misc bonuses, but I feel it could still use some more variety. Maybe some former tech?
Great game, love it so much already in beta
