Osmos
Fair · Short indie · 2009
Steam Deck PlayableThe verdict
NO RUSH.
Fair at $9.99. Buy it if you want it.
- Length
- 5.7h
- Value
- $1.75/hr
- Reviews
- 86% positive
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Minimum on the Steam store: 512 MB of memory, 3D graphics card with OpenGL support. Minimum resolution 800x600, 31 MB of storage. Runs on Windows, macOS, Linux.
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 those who wait.
What drives the score
How to read this
Every input gets a grade, S to D, read from the buyer's side. The score is multiplicative, so an input only counts as raising when it sits near the top of its own scale. Anything with real room left is holding the score back, because that room is the gap to 100. ▲ marks a lift, ▼ a drag or a dock, ? an input we do not have, • a fact this genre's score does not use. The exact weights stay secret.
The value story
It has never been cheaper than $1.99. That was November 2015. Its cuts run 70 percent off as a rule. There have been 47 in the 14 years tracked, about 12 weeks apart. Today it is at full price. The last sale was about 27 weeks ago, and on this game's rhythm the next one tends to arrive within 12 weeks.
Against its own genre it lands in the top 7 percent on value. It is pricier than 88 percent of its genre, and better reviewed than 90 percent. Among the games that feel like it, Sizeable ($6.99, scores 82) beats it on value, while it beats AtmaSphere ($3.99, scores 57).
Steam's global achievement data says about 3 percent of players ever finish it. On a 5.7-hour game, that is a lot of paid-for hours most people never see. Of the 283 Steam-purchase reviews this site sampled, 1 comes from a buyer who refunded the game, sampled from reviews written April 2020 to August 2026. Inside the two-hour refund window, 74 percent of the 216 reviews written there were positive, against 86 percent overall, and those are 31 percent of everything written about it.
The drop-off
72% start to 3% finishMost players never reach the end. On a 5.7-hour game, that's a lot you pay for and may never use. Steam global achievements
Players
3 players at peak in the last day.
The chart appears once this game has been counted more than once.Player counts via SteamSpy.
What players say
Great atmosphere, good music, gameplay in some levels mid Relax, lay back, enjoy the game and maybe punch a hole in your monitor
Somehow, 17 years later, I'm drawn back to this game. A mixture of anxiety and calmness. A little bit of luck and planning, and the game isn't too terribly difficult. Excellent ambient soundtrack and just a good way to spend a few hours forgetting about the world around you.
Purchased for 2,45 euros. You can make this game either extremely relaxing or extremely challenging. On the one end you turn off the in-game music (fitting but very limited) and provide your own tracklist, and let the smallest movements guide you towards veeery slowly becoming the biggest. Or don't and just float around endlessly forever while vibing to some good music. On the other end you turn off the in-game...
Player reviews from Steam: the most helpful all-time, plus the newest that clear the same quality bar, with the hours each player had put in when they wrote it. The mix of Recommended and Not recommended follows the game's Steam ratio. Rotates daily. Opinions are theirs.
Cite this score
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Osmos scores 59/100 on the BANG Score (fair value). The BANG Score rates what a game is worth for the money. Via Steam BANGERS. https://steambangers.com/game/29180/osmosThe BANG Score is one number for value, 0 to 100: price against how it reviews and how long it was built to be. It answers the money question and stops there; whether the game is for you is still your call.
Reviews set the ceiling and price moves you inside it, so a cheap game that reviews badly cannot climb. Ratings from few reviewers are shrunk toward the middle, so 100 percent from nine people does not outrank 96 percent from ninety thousand. Length comes from HowLongToBeat where it can be matched, measured against a per-genre floor so a five-hour narrative game is judged against other narrative games rather than against a sixty-hour RPG. Where no verified length exists the score says so and carries a dock, because the biggest input is then a guess. The full method, including where it is weak → Steam reviews as of Sep 4, price as of Sep 24.
A number here look wrong? Tell me what it got wrong and I will look at the inputs behind it.