Oxygen Not Included Gameplay Series My first look at Oxygen Not Included. Join me as I attempt to keep duplicants alive for just a little while longer. Oxygen Not Included Description: Oxygen Not Included is a space-colony simulation game. 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. OxygenNotIncluded_S1