Oxygen Not Included
Space colony simulation built around survival and interconnected resource systems
Klei Entertainment · Released Jul 30, 2019
- Reviews
- Overwhelmingly Positive
- 96% of 142K
- Recent reviews
- Overwhelmingly Positive
- 96% of 646 in 30 days
- Players
- 7,122
- daily peak, Nov 7, 2026
- Steam Deck
- Verified
- Last update on Steam
- 3 months ago
- Jul 28, 2026
Metacritic: 85/100 (critic reviews)
What is Oxygen Not Included?
In this 2D single-player colony simulation, you direct colonists living beneath a procedurally generated asteroid. You excavate, expand a base, and connect plumbing and power while balancing oxygen, food, temperature, stress, gases, liquids, and limited resources.
For you if...
- +you enjoy complex colony management and interconnected simulated systems
- +you like solving survival problems through trial and error
- +you want a single-player sandbox with long-term optimization
Not for you if...
- −you want gentle onboarding and clearly explained mechanics
- −you dislike failures caused by earlier planning mistakes
- −you prefer relaxed building without constant resource pressure
What players say
96% of 142,222 reviews are positive · 96% of 646 in the last 30 days
Players most often praise how gases, liquids, heat, power, and automation interact, creating room for experimentation and highly optimized bases. The most common complaint is weak onboarding: players say crucial mistakes may become fatal hours later, pushing them toward guides or repeated failed colonies.
Players over time
▲ +8% vs a month agoPlayers online on Steam, one sample a day.
Highest since Sep 2026: 8,074 players on Nov 1, 2026.
Show the data
| Day | Players |
|---|---|
| Nov 7, 2026 | 7,122 |
| Nov 6, 2026 | 5,609 |
| Nov 5, 2026 | 5,430 |
| Nov 4, 2026 | 5,552 |
| Nov 3, 2026 | 6,106 |
| Nov 2, 2026 | 5,835 |
| Nov 1, 2026 | 8,074 |
| Oct 31, 2026 | 7,587 |
| Oct 30, 2026 | 5,875 |
| Oct 29, 2026 | 5,747 |
| Oct 28, 2026 | 5,937 |
| Oct 27, 2026 | 5,303 |
| Oct 26, 2026 | 5,379 |
| Oct 25, 2026 | 7,698 |
| Oct 24, 2026 | 6,074 |
| Oct 23, 2026 | 5,067 |
| Oct 22, 2026 | 4,815 |
| Oct 21, 2026 | 4,974 |
| Oct 20, 2026 | 5,155 |
| Oct 19, 2026 | 5,295 |
| Oct 18, 2026 | 6,848 |
| Oct 17, 2026 | 6,573 |
| Oct 16, 2026 | 5,422 |
| Oct 15, 2026 | 0 |
| Oct 14, 2026 | 5,391 |
| Oct 13, 2026 | 5,535 |
| Oct 12, 2026 | 5,744 |
| Oct 11, 2026 | 7,359 |
| Oct 10, 2026 | 5,878 |
| Oct 9, 2026 | 5,452 |
| Oct 8, 2026 | 4,980 |
| Oct 7, 2026 | 5,648 |
| Oct 6, 2026 | 5,914 |
| Oct 5, 2026 | 6,059 |
| Oct 4, 2026 | 6,677 |
| Oct 3, 2026 | 6,025 |
| Oct 2, 2026 | 5,199 |
| Oct 1, 2026 | 5,025 |
| Sep 30, 2026 | 4,646 |
| Sep 29, 2026 | 4,633 |
| Sep 28, 2026 | 4,843 |
| Sep 27, 2026 | 5,866 |
| Sep 26, 2026 | 5,784 |
| Sep 25, 2026 | 5,265 |
| Sep 24, 2026 | 4,652 |
| Sep 23, 2026 | 6,074 |
| Sep 23, 2026 | 4,095 |
| Sep 22, 2026 | 4,015 |
| Sep 21, 2026 | 5,872 |
How many players finish Oxygen Not Included?
2.3% of Steam players have unlocked «Home Sweet Home», the achievement for finishing the main story.
Share of everyone who owns the game on Steam, including those who barely played it. Updated weekly.
Screenshots and trailer
Oxygen Not Included system requirements
Minimum: HD 4600, 8 GB RAM, 3 GB of disk space.
As published by the developer.
Can my PC run Oxygen Not Included?
Tell us your graphics card once and every game page will answer this for you.
Set up my PC →Minimum
- OS
- Windows 10 version 21H1 or later
- Processor
- Dual Core 2 GHz
- Graphics
- Intel HD 4600 (AMD or NVIDIA equivalent)
- Memory
- 8 GB RAM
- Storage
- 3 GB available space
- DirectX
- Version 11
Recommended
- OS
- Windows 11
- Processor
- Intel Core i7-8700K or equivalent
- Graphics
- Dedicated graphic card with 2GB VRAM
- Memory
- 16 GB RAM
- Storage
- 3 GB available space
- DirectX
- Version 11
Does Oxygen Not Included have co-op or multiplayer?
No: single-player only, no multiplayer modes declared.
Does Oxygen Not Included run on Steam Deck?
Verified Yes, Verified by Valve: it works on Steam Deck out of the box.
- All functionality is accessible with the default controller configuration
- Shows Steam Deck controller icons
- In-game text is legible on Steam Deck
- Default graphics settings perform well on Steam Deck
PC version details
- DRM
- None declared on Steam
- Controller
- Keyboard and mouse
- Platforms
- Windows, macOS, Linux
- Achievements
- 51
- Steam features
- Family Sharing, Trading cards
- Languages
- Full audio: English, Simplified Chinese, Korean, Russian.
Does Oxygen Not Included use AI-generated content?
No AI-generated content is disclosed on the game's Steam page.
Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Nov 6, 2026. How to filter AI games on Steam
Tags
- Colony Sim
- Base Building
- Survival
- Resource Management
- Building
- Singleplayer
- Management
- 2D
- Sandbox
- Simulation
- Strategy
- Space
- Indie
- Sci-fi
- Difficult
- Exploration
Recent updates
- Jul 28, 2026 · [Game Update] - 744825
- Jul 7, 2026 · [Game Update] - 740622
- Jun 17, 2026 · [Game Update] - 737790
- Jun 12, 2026 · [Game Update] - 737195
- Jun 11, 2026 · The Aquatic Planet Pack is Now Available + Update + Klei Fest 2026
7 DLC available.