Oxygen Not Included: The Aquatic Planet Pack

Dev: Klei EntertainmentReleased: Jun 11, 2026

Dive into the deep end of space colony expansion in The Aquatic Planet Pack! This DLC features a new flooded planet with marine biomes, resources, critters, plants, and more. Towel not included.

SimulationSurvivalSandboxStrategyAdventureColony SimBase BuildingResource ManagementSingleplayerManagement2DSimulationSpaceSci-fiDifficultExplorationOpen WorldMultiplayerSpace Sim