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Osmos
Enter the ambient world of Osmos: elegant, physics-based gameplay, dreamlike visuals, and a minimalist, electronic soundtrack. Your objective is to grow by absorbing other motes. Propel yourself by ejecting matter behind you. But be wise: ejecting matter also shrinks you. Relax - good things come to
What players say
Steam review score and the most-helpful voices, which may include critical ones. Data as of 2026-05-20.
“This game takes the very beginning of "Spore" and turns it into a full game with multiple modes and great gameplay. This is one of those games that I played on my phone first and then saw on PC. Its the same game either way and totally worth playing as a wind-down or Zen-type…”
— a player, Steam review · 7 hrs played“The advanced orbit levels are ♥♥♥♥♥♥♥ stupid”
— a player, Steam review · 3 hrs played“Awesome puzzles. Orbital stuff is really interesting.”
— a player, Steam review · 4 hrs playedPlayer activity
Monthly average concurrent players. Live count fetched 2026-07-11 11:45 UTC · history via SteamCharts.
Achievement stats
Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-07-25.
Price tracking
US-region pricing (USD), sampled twice daily by our own tracker since 2026-07-11. Steam prices vary by region — always confirm your local price on Steam.
Regional prices at last sample, in local currency — Steam sets each region's price independently.
Cheapest → most expensive, converted to USD at ECB reference rates (2026-07-24). Relative comparison only.
Latest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
Osmos for Mac Updated
Just a technical update. Took a while to dig up the old NASA mission plans to get it out though! ;-)
"Physics of Osmos" Video Contest. 4 days left, $500 first prize!
Dear Motes, We're running a video contest, along with Andrew Vanden Heuvel (an online physics & astronomy teacher with the Michigan Virtual School), calling for students and gamers alike to create vid
"Physics of Osmos" Video Contest. 4 days left, $500 first prize!
Dear Motes, We're running a video contest, along with Andrew Vanden Heuvel (an online physics & astronomy teacher with the Michigan Virtual School), calling for students and gamers alike to create vid
Free Osmos Soundtrack!
Enjoy the music in Osmos? If so, check out the extended, free soundtrack from Create Digital Music with Loscil, Gas 0095, Julien Neto, High Skies, and more! http://www.hemispheregames.com/2010/03/osmo
Games like Osmos
From our knowledge graph — ranked by shared traits, not a black box. Each card says why it's here.
SpaceChem
93.4% · 3,411 reviews
shares Science, Education, Space, Great Soundtrack
LYNE
95.2% · 4,068 reviews
shares Procedural Generation, Great Soundtrack, Minimalist, Difficult
Waveform
81.7% · 862 reviews
shares Space, Great Soundtrack, Difficult, Sci Fi
The Howler
73.3% · 688 reviews
shares Great Soundtrack, Physics, Difficult, Arcade
SpaceEngine
96.0% · 9,300 reviews
shares Science, Education, Procedural Generation, Space
ΔV: Rings of Saturn
92.8% · 2,769 reviews
shares Science, Procedural Generation, Space, Physics
Universe Sandbox
96.7% · 22,242 reviews
shares Science, Education, Space, Physics
Reassembly
94.1% · 2,804 reviews
shares Procedural Generation, Space, Great Soundtrack, Physics
Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-05-20.
| Genres | Casual, Indie |
| Player tags | Indie · Casual · Puzzle · Relaxing · Singleplayer · Physics · Ambient · Great Soundtrack · Atmospheric · 2D · Difficult · Space (SteamSpy community voting) |
| Features | Single-player · Steam Achievements · Family Sharing |
| Languages | English, French, German, Spanish - Spain, Italian |
| Achievements | 11 |
| Estimated owners | 200,000 – 500,000 (SteamSpy) |
| Official site | http://www.hemispheregames.com/osmos |
Minimum system requirements (PC)
OS *: Windows XP or Vista Processor: 1 GHz Memory: 512 MB RAM Graphics: 3D graphics card with OpenGL support. Minimum resolution 800x600 DirectX®: N/A (OpenGL) Hard Drive: 33 Mb Sound: definitely :)