notes on…
Oxygen Not Included
A space colony inside an asteroid where gases, liquids and temperatures all simulate. Bring a notebook.
What you actually do
Manage a small team of duplicants digging into an asteroid. Provide oxygen, food, water and power, and deal with heat, germs and pressure. Every gas and liquid physically flows.
Who will love it
Planners who love deep simulation and enjoy solving physics problems.
Everything flows
Gases rise and sink, liquids pool and heat spreads. Understanding this is the key to a stable colony.
Overlays
The overlay menu shows oxygen, temperature, power and more. Use them all the time.
Start again
Your first colonies will fail. Each one teaches you something.
Plus
- Brilliant simulation
- Charming art
- Huge depth
Minus
- Very steep curve
- Can feel overwhelming
Bottom line
The deepest colony game for players who love systems.
Notes written on 27 October 2026. Updates can change details; the official page has the latest.