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/play
Seedship

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.
@janellecshane I ended up with a slave state and emperors with great gold palaces XD
@janellecshane this game is really fun, thanks for the link!