I've been playing the game, and it got stuck for several minutes on an "end of turn" animation. Unfortunately, the nearest auto-save was over a dozen turns before, and on repeat playthrough, the problem did not re-occur.
One thing that was happening on the inter-turn was that the wandering monster was about to destroy my outpost. However, debug.err suggests that maybe the wandering monsters destroyed an enemy civilization, perhaps?
Dropbox for the debug.err is http://dl.dropbox.com/u/65172492/debug%20-%20Hanging%20Game.err
