This game is a bit addictive and it's kinda sad whenever humanity goes extinct. But such a warm fuzzy feeling when the colonists end up weird but happy.
http://philome.la/johnayliff/seedship/playSeedship
An AI ship full of frozen colonists must find the best planet to be the new home of the human race.
I ended up being dinged when my colonists ended up reverting to a neolithic culture on floating platforms. But their society was built on equality and they had awesome animal pets. Probably more sustainable than whatever doomed earth.