Oxygen Not Included — compare key prices
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.
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€6.89 ≈ 809 RSD
updated 16 min ago
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Lowest — official stores
€6.89
Jun 2026
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FAQ
Are keys from these stores legal?
Buying is legal — keys come from the grey market, so a small deactivation risk exists. That's why we only list sellers with 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.