Indie · July 30, 2019
Oxygen Not Included (2019)
In the space-colony simulation game Oxygen Not Included you’ll find that scarcities of oxygen, warmth and sustenance are constant threats to your colony's survival. Guide colonists through the perils of subterranean asteroid living and watch as their population grows until they're not simply surviving, but thriving... Just make sure you don't forget to breathe. Build Extensive Bases and Discover What it Takes to Survive: Everything in your space colony is under your control, from excavation and resource allocation right down to plumbing and power systems. Resources will begin depleting with your first breath, however, so be sure to dig fast if you want to live. It’s Mind Over Matter with Stress Simulations: Keep the psychological impact of survival at bay with fun leisure activities, great accommodations and even better food for your colony. Duplicants each have different and potentially destructive ways of reacting to stress, so be sure to always keep them happy. Whatever the cost. Avoid Boiling with Thermodynamics: Temperature control is a constant concern in space; too cold and you'll freeze, too hot and you'll fry. Keep tabs on ambient environmental temperatures and your colony's heat production to maintain a nice, cozy atmosphere for your colonists. Enhance Efficiency through Complex Gas and Liquid Simulations: Create interlocking pipe systems to swiftly deliver fuel and liquid to critical areas of your base. Plan well and be rewarded as your colony transforms into an imperishable, well-oiled machine. Take Charge with Power Grid Simulations: Choose from a multitude of power sources including coal, hydrogen, natural gas or just plain old elbow grease. Manage power runoff, circuit overloads and meltdowns to keep your colony running smoothly. Always Keep Yourself Breathing: Enter the Oxygen Overlay and watch air moving through your base in real time. Monitor carbon dioxide accumulation and oversee oxygen generation processes to mold your colony into a veritable deep-space oasis. Waste Nothing through Extreme Recycling: Make use of every last resource for a base that truly exemplifies efficiency. Recycle waste into precious fuel, process unbreathable gas into air or harness the natural bodily processes of wild creatures for food. If you’re clever, you might even be able to run a base off colonist farts. Explore Diverse, Procedurally Generated New Worlds: Summon new worlds with a push of a button. Experience tons of untamed space rocks, then suffocate to death in them!
Indie releases from 2019
38 Indie titles launched in 2019 — top 6 by review volume.
Position in Indie
| Metric | This title | Genre position |
|---|---|---|
| Review volume | 128.4k Steam reviews | Top 3% in Indie |
| Positive rating | 97% positive | Genre average: 87% — this title sits in top 9% |
| Metacritic | 85/100 | Genre average 77 — top 16% of Indie titles |
| Concurrent peak | 7.5k players | Top 3% in Indie by live player count |
| Engagement hours | 81 h average | Top 4% for session depth among Indie |
Community Tag Signals
Tag weights reflect how many Steam users voted each descriptor — larger pills = stronger consensus.
- Colony Sim · 2.2k
- Base-Building · 2.1k
- Survival · 1.9k
- Resource Management · 1.6k
- Building · 1.3k
- Singleplayer · 1.2k
- Management · 986
- 2D · 932
- Simulation · 909
- Sandbox · 903
- Strategy · 846
- Space · 710
- Indie · 563
- Sci-fi · 522
- Difficult · 471
Peer Indie titles
Comparable titles in the same genre and review-volume band — ranked by Steam positive percentage.
Reception Metrics
Steam community
97%Overwhelmingly Positive · 128.4k reviews
124.5k positive · 3.9k negative
Metacritic
85/100 critic aggregate
Curator recommendations
127.9k
Peak concurrent players
7.5k
More from Klei Entertainment
Klei Entertainment has 10 titles indexed — top 6 by review volume below.
Localization Coverage
Interface / Subtitles (4)
- English volume_up
- Simplified Chinese volume_up
- Korean volume_up
- Russian volume_up
Full audio (4)
- English
- Simplified Chinese
- Korean
- Russian
Engagement Profile
All-time avg
81h
substantial (40–100 hours)
Median
14h
Typical completion time
2-week avg
17h
Current engagement
Achievements
50
Steam unlocks available
Release & Availability
| Release date | Jul 30, 2019 |
|---|---|
| Developer | Klei Entertainment |
| Base price | $7.49 -70% |
| DLC / Add-ons | 6 released |
| Platforms | Windows, macOS, Linux |
| Estimated owners | 1M–10M |
| External links | Official site · Metacritic page · Support · [email protected] |
Features & Capabilities
Community
- Steam Trading Cards
Other
- Single-player
- Family Sharing
Editions & Packages
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