

With near-perfect execution, Oxygen Not Included is a must-play for any strategy fan.
93
Verdict
97%
Steam
—
IGDB
Verdict score based on confidence-adjusted Steam reviews?
Overwhelmingly Positive on Steam (97% positive from 139K reviews)
Active community with 12,246 concurrent players
Rich open world to explore
Standout indie gem
Steep difficulty curve may not appeal to casual players
Still in Early Access — content may be incomplete
Oxygen Not Included is a 2019 survival simulation video game developed and published by Klei Entertainment. After being released on Steam's early access since February 2017, the game was officially released on July 30, 2019.

Runs well on modern hardware.
System Requirements
Minimum
One Bed One Bath
Have at least one bed and one toilet for each Duplicant in the colony.
70.7%
unlocked
Outdoor Renovations
Construct a building outside the initial starting biome.
51.8%
unlocked
To Pay the Bills
Use a Duplicant's Skill Points to buy out an entire branch of the Skill Tree.
51.8%
unlocked
It's Not Raw
Have a Duplicant eat any cooked meal prepared at an Electrical Grill or Gas Range.
45%
unlocked
Good Egg
Hatch a new critter morph from an egg.
42.7%
unlocked
Royal Flush
Replace all the Outhouses and Wash Basins in your colony with Lavatories and Sinks.
35.2%
unlocked
They Got Better
Cure a sick Duplicant of disease.
32%
unlocked
Oxygen Not Occluded
Distribute 1000kg of Oxygen using gas vents.
30.1%
unlocked
Red Light, Green Light
Automate a building using sensors or switches from the Automation tab in the Build Menu.
26.7%
unlocked
Ghosts of Gravitas
Recover a Database entry by inspecting facility ruins.
23.8%
unlocked
Oxygen Not Included: March 2026 Bug Fix Update
Hi everyone,Our March 2026 Bug Fix Update goes live today!For this free update, we focused on squashing a bunch of bugs. We also made some changes to
[Game Update] - 707956
FixesAll versionsFixed a crash that could occur when critters consume plants directly.Fixed crash that could occur if a mess station is deconstructed
[Game Update] - 706793
FixesAll versionsFixed falling liquid drops being deleted after the game loads.Fixed Duplicants freezing when trying to relocate a critter stuck insid
[Game Update] - 704096
FixesAll versionsFixed an issue where Duplicants could occasionally bypass suit checkpoints without equipping a suit.Fixed Duplicants dropping items m
[Game update] - 703433
Changes and ImprovementsAll versionsUpdated Korean localization.FixesAll versionsFixed Pacu being confined even though they are not.Fixed Fish Release
Updated 1d ago
One Bed One Bath
Have at least one bed and one toilet for each Duplicant in the colony.
70.7%
unlocked
Outdoor Renovations
Construct a building outside the initial starting biome.
51.8%
unlocked
To Pay the Bills
Use a Duplicant's Skill Points to buy out an entire branch of the Skill Tree.
51.8%
unlocked
It's Not Raw
Have a Duplicant eat any cooked meal prepared at an Electrical Grill or Gas Range.
45%
unlocked
Good Egg
Hatch a new critter morph from an egg.
42.7%
unlocked
Royal Flush
Replace all the Outhouses and Wash Basins in your colony with Lavatories and Sinks.
35.2%
unlocked
They Got Better
Cure a sick Duplicant of disease.
32%
unlocked
Oxygen Not Occluded
Distribute 1000kg of Oxygen using gas vents.
30.1%
unlocked
Red Light, Green Light
Automate a building using sensors or switches from the Automation tab in the Build Menu.
26.7%
unlocked
Ghosts of Gravitas
Recover a Database entry by inspecting facility ruins.
23.8%
unlocked
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