Just tried to play, but for some reason I wasn't able to move. Neither WASD nor the arrow keys did anything. Mouselook was fine, and I could hit F to fullscreen and esc to quit.
Hm... I'll have to look into this. Would you happen to have a controller plugged into your computer anywhere?
Yes! However, it didn't work either.
Ah, I got halfway through programming controller support in this update so the game will only let you play with mouse and keyboard if no controllers are plugged in. So try unplugging all controllers then opening the game.