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90% positive of 21 · Positive · Live from Steam
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Free on Steam. The demo has its own app, so its players are counted separately.
PHYSARUM is a sandbox simulation game. Simulate the real world slime mold Physarum polycephalum by generating millions of living particles. Create and mutate slime species in real time to discover countless mesmerizing and emergent patterns.
Live data from Steam, tracked by SteamPlayerBase.
What changed on Steam for this game since we started following it: prices and sales, builds, name, release date and review score.
Review score: 90% on 2026-11-01 → 90% today (21 reviews)
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Not tested by Valve yet. Results from Valve's own testing.
Valve hasn't published test details for this game.
Every build released on Steam for this game since we started tracking it, with the developer's patch notes. Updated within minutes of each new build.
Fixed typo in "More Info" menu
Bug Fixes: fixed import/export and undo/redo issues related to regional decimal symbol differences updated help text in video and image mode "Browse" windows to explain how to import custom media more clearly color RGB values can now only have integer values (…
v1.1 New Features PNG Exporting with Transparency use the new button to left of 'Import / Export' on the top bar, or press (F10), to take a snapshot of the slimes on screen with a transparent background snapshots are saved as PNGs in a new folder 'MEDIA/SCREEN…
No authorized Steam key store lists this game right now.