Oxygen Not Included Gets Steam Early Access, Trailer Released

A colony simulation game by Klei Entertainment
Oxygen Not Included is a space-colony simulation game in which you will manage your colonists and help them dig, build and maintain a subterranean asteroid base. You'll need water, warmth, food, and oxygen to keep them alive, and even more than that to keep them happy.
The game is being developed by Klei Entertainment for Windows PC.