Oxygen Not Included
Space colony simulation built around survival and interconnected resource systems
Klei Entertainment · Released Jul 30, 2019
- Reviews
- Overwhelmingly Positive
- 97% of 144K
- Recent reviews
- Very Positive
- 94% of 549 in 30 days
- Playing now
- 6,074
- right now
- Steam Deck
- Verified
- Last update
- 1 month 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
97% of 143,916 reviews are positive · 94% of 549 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.
Screenshots and trailer
Oxygen Not Included system requirements
As published by the developer.
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
PC version details
DRM, required accounts, controller support and Steam features.
- DRM
- None declared on Steam
- Controller
- Keyboard and mouse
- Platforms
- Windows, macOS, Linux
- Achievements
- 51
- Steam features
- Family Sharing, Trading cards
Steam Deck: Verified
- 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
Multiplayer and co-op
Languages
Full audio: English, Simplified Chinese, Korean, Russian.
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.
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