Oxygen Not Included
By Klei Entertainment
Keep a subterranean colony alive by managing oxygen, water, heat and the side effects of growth.
TAKE A CLOSER LOOK
Inside the game
THE QUICK INTRODUCTION
What’s it all about?
Oxygen Not Included makes survival a network of connected systems. Duplicants need breathable air and practical facilities, but a solution in one area can create trouble elsewhere through waste, heat or resource consumption. Digging farther is therefore a decision about what the colony can support, not simply how much space is available.
The appealing part is tracing a problem back through that network. An empty pipe or overheated room usually has a reason worth understanding before you add another machine. Players who like experimentation and technical-looking systems will find a rich colony puzzle here. Expand slowly enough to recognise what changed when an apparently stable setup begins to fail.
Release and platform details
Developer: Klei Entertainment. Publisher: Klei Entertainment. Steam edition release date: Jul 30, 2019. Desktop systems listed on Steam: Windows, macOS, Linux.
Official sources
Store information checked on 15 October 2026. Availability, device requirements and optional purchases can vary by region and platform.
Artwork and image credits
Image credit: Klei Entertainment. The official cover and gallery images come from the developer/publisher’s Steam listing. Gallery images represent the PC store edition and may include promotional panels. Mobile editions may look different. Images belong to their respective owners.
Your kind of game if…
You enjoy colony survival and diagnosing systems whose useful outputs also create new problems.
GET OFF TO A GOOD START
How to play
- Establish basic oxygen, sanitation and food before rapid growth.
- Follow resource flows when a facility stops working.
- Keep an eye on heat as well as available supplies.
- Add colonists only when the infrastructure can support them.