Oxygen Not Included — cheap CD keys, compare prices
Is it worth buying?
- Reviews are excellent. (Metacritic 85 · Steam 97%)
- The price is well above its low (was €5.54) — worth waiting for a drop or setting an alert. Notify me on a drop →
Estimate based on public reviews (Metacritic/Steam) and price history — the final call is yours.
About the game
A space-colony simulation set in a 2D cross-section of an asteroid: you manage a group of duplicants who need oxygen, food, water and power to survive. Underneath is a deep physics simulation — gases, temperature and liquids behave realistically, making every base an engineering puzzle.
Did you know?
It comes from Klei Entertainment, the studio behind Don't Starve and Mark of the Ninja, known for its hand-drawn animation style.
Best price today
€22.99
all-time low: official €6.89 · keyshop €5.54 (+315%)
The cheapest Oxygen Not Included key right now costs €22.99 at Steam — the best of 3 compared offers. The lowest price we have recorded for this game: €5.54.
The average low over the past 4 months was €14.60.
↳ chosen by the region label on the key — not a guarantee
Prices as of
Steam best price Official store
GameSeal Marketplace
GameSeal Marketplace
No offers match these filters — try widening them.
Listed seller price shown — payment fees may vary by method.
Oxygen Not Included prices by store 2
| Store | Type | Price |
|---|---|---|
| Steam | Official store | €22.99 |
| GameSeal | Marketplace | €23.96 |
Lowest — official stores
€6.89
Jun 2026
Lowest — keyshops
€5.54
Jul 2026
Price history
last 90 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Sept 2026 | €22.99 | €23.96 |
| Aug 2026 | €22.99 | €24.01 |
| Jul 2026 | €6.89 | €5.54 |
| Jun 2026 | €6.89 | — |
Lowest in-stock price per month from our price history; the current month is the low so far.
How to activate your key
- Steam key — open the Steam client → Games → Activate a Product on Steam → enter the key. Stores with this activation: Steam, GameSeal
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All-time low so far: €5.54
System requirements
| Minimum | Recommended | |
|---|---|---|
| OS | Windows 7 (64 bit) | Windows 11 |
| Processor | Dual Core 2 GHz | Intel Core i7-8700K or equivalent |
| Memory | 8 GB RAM | 16 GB RAM |
| Graphics | Intel HD 4600 (AMD or NVIDIA equivalent) | Dedicated graphic card with 2GB VRAM |
| DirectX | Version 11 | Version 11 |
| Storage | 3 GB available space | 3 GB available space |
Similar games
Video reviews
6:50 Oxygen Not Included (Alpha) - Worthabuy?
Worth A Buy
7:47 Should You Buy Oxygen Not Included? Is ONI Worth the Cost?
Game Advisor
9:25 Oxygen Not Included Review 2022
Admiral Gaming
Reviews are made and published by independent YouTube channels; they load only on click.
About this game — FAQ
Can Oxygen Not Included be played single-player?
Yes, Oxygen Not Included is a single-player game.
What languages does Oxygen Not Included support?
Oxygen Not Included is available in: English, Simplified Chinese, Korean, Russian.
FAQ
Where is the cheapest place to buy a Oxygen Not Included key?
The cheapest Oxygen Not Included key is currently sold by Steam for €22.99. That is the best of 3 offers we compare; prices are refreshed regularly. The lowest price we have ever recorded for this game: €5.54.
How much does Oxygen Not Included cost?
Oxygen Not Included currently costs from €22.99 — the cheapest offer across the stores we track.
Is Steam an official store or a keyshop?
Steam is an official store — keys come directly from the publisher or an authorized distributor.
Are keys from these stores legal?
Buying is legal — keys come from the grey market, so a small deactivation risk exists. So before paying, check the seller's buyer protection.
Which key region should I pick?
Global activates everywhere. Regional keys (Europe, North America, RU-CIS) only work on accounts from that region — use the Region filter to match your account.
What is an activation platform?
The service where the key activates — Steam, GOG, Epic or the publisher's platform. A key for one platform won't work on another, hence the separate filter.
What's the difference between editions?
Standard is the base game; Deluxe usually adds an expansion or bonus content. The edition filter shows exactly that variant, with no mixed prices.