Version History. The alpha stage of Oxygen Not Included's development started on February 15th, 2017. On May 18th, 2017, the game transitioned into Early Access, and on July 30th, 2019, it was officially published. The developers also maintain their own update log on the forums.
Apr 16, 2019 · After two years in early access, Oxygen Not Included will launch in full on May 28th, developers Klei Entertainment announced today. Oxygen is a cheerygrim space colony management sim from the mob being Don’t Starve, sending teams of workers into the depths of an asteroid to mine, build, repair, fall ill, starve, go mad, and suffocate to death.