74%Strong matchSpace Haven
86%11k86% positive reviews, Very Positive across 11k reviews·Colony Sim · Base Building
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Antimatter is a sandbox strategy game, colonise planets, build your city on the surface or the underground. Build your spacestation or control your own spaceships to explore a huge and living galaxy !
Antimatter
SteamAntimatter is a strategy and RPG game in a simulated and living galaxy. In command of your spaceship, trade, fight, explore, or rule an interstellar organization.























A dynamic plot guides the galaxy's simulation while you are playing. Your action and participation to some missions will influence, among other things, the course of global events. You can change, slow down or precipitate them.
Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.
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The best games like Antimatter are Space Haven, Solargene, The Fermi Paradox, Space Architect, and Imagine Earth.
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