Oxygen Not Included: The Prehistoric Planet Pack is an indie developed by Klei Entertainment, released 12 June 2025 on Linux, Mac and PC (Microsoft Windows).
What Oxygen Not Included: The Prehistoric Planet Pack is
Oxygen Not Included: The Prehistoric Planet Pack is an indie game developed by Klei Entertainment and released in 2025. It is available on Linux, Mac and PC (Microsoft Windows).
The premise, in the publisher's words
Race to save your Duplicants from an incoming asteroid collision in The Prehistoric Planet Pack! This DLC features a new planet with brand-new biomes, resources, carnivorous critters and plants, and more. Everything a colony needs to escape extinction.
How it plays
It is a single-player game with no multiplayer component.
What it launched against
Oxygen Not Included: The Prehistoric Planet Pack launched on 12 June 2025, within three weeks of Death Stranding 2: On the Beach, Dune: Awakening, The Alters and Elden Ring Nightreign.
Released around the same time: Death Stranding 2: On the Beach, Dune: Awakening, The Alters, Elden Ring Nightreign.
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Quick answers
Oxygen Not Included: The Prehistoric Planet Pack — frequently asked questions
When did Oxygen Not Included: The Prehistoric Planet Pack come out?
Oxygen Not Included: The Prehistoric Planet Pack was released on 12 June 2025 for Linux, Mac and PC (Microsoft Windows).
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