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.
User reviews:
Overall:
Very Positive (725 reviews) - 88% of the 725 user reviews for this game are positive.
Release Date: Aug 18, 2009

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Reviews

a beautiful, absorbing experience… brilliant to look at… the best videogame music I've heard… will make you forget your cares and immerse you in the game… you'll find yourself returning for the experience. 8.5! Editor’s Choice Award.
IGN

wonderful gameplay… beautifully polished and tantalizingly atmospheric… Osmos mixes puzzle, action and strategy remarkably and all the while does it with great finesse and style.
indiegames.com

beyond doubt, a work of genius... a relaxing, meditative experience about going with the flow... It all adds up to something otherworldly and just . . . incredible.
GameAndPlayer.net

an almost transcendental video game experience… a stellar example of electronic music's potential impact on indie video game production.
londonfuse.ca

About This Game

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.

Key features:

  • Independent Games Festival finalist in three categories: Seumas McNally Grand Prize, Excellence in Design and Technical Excellence
  • Progress from serenely ambient levels into varied and more challenging worlds. (47 levels, plus bonus content)
  • Confront attractors, repulsors and intelligent motes with similar abilities and goals as you
  • Selected as one of the 2009 PAX 10
  • Procedural content: play random versions of any level
  • Sublime electronic soundtrack by Loscil, Gas/High Skies, Julien Neto, Biosphere, and more
  • Dynamic time-warping: slow down the flow of time to outmaneuver agile opponents; speed it up to raise the challenge

System Requirements

Windows
Mac OS X
SteamOS + Linux
    • 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 :)
    • OS: OS X version Leopard 10.5.8, Snow Leopard 10.6.3, or later
    • OS: Ubuntu 12.04 LTS, fully updated
    • Processor: 1 GHz or faster
    • Memory: 512 Mb or more
    • Graphics: Hardware accelerated OpenGL support. Minimum resolution 800x600
    • Hard Drive: 40 Mb free space
Customer reviews
Customer Review system updated Sept. 2016! Learn more
Overall:
Very Positive (725 reviews)
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508 reviews match the filters above ( Very Positive)
Most Helpful Reviews  In the past 30 days
2 of 2 people (100%) found this review helpful
Recommended
3.3 hrs on record
Posted: September 10
I enjoyed this game, but I'm not sure how to categorise it. The closest category is a physics puzzler, as momentum is absolutely vital to this game, but in a simple intuitive manner. It has the style of a relaxing game, but many of the levels can be frantic at the start as the player desperately tries to get big quickly. Some levels are quite hard to complete despite all being easy to understand. There are 3 groups of levels and the feel between them is very different. There are: ambient levels which are the closest to puzzles; force levels, where everything rotates around a central object; and levels where you are up against AI opponents.

https://youtu.be/LOnrintP_Uc
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Most Helpful Reviews  Overall
184 of 200 people (92%) found this review helpful
7 people found this review funny
Recommended
Posted: September 22, 2011
this game is great. it's the deleted content from spore when you're completely useless.
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59 of 64 people (92%) found this review helpful
28 people found this review funny
Recommended
2.1 hrs on record
Posted: May 27, 2015
Agar.io before it was cool
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49 of 59 people (83%) found this review helpful
16 people found this review funny
Recommended
20.7 hrs on record
Posted: November 17, 2014
I thought this was a short,relaxing game


It's not.
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24 of 29 people (83%) found this review helpful
2 people found this review funny
Recommended
8.1 hrs on record
Posted: January 28, 2014
First half of the game is really good, if you like calm and tranquilizing games. You can play this while stoned. :D

Second half is utterly frustrating and the cause of the heap of antidepressants prescriptions in this land. xD
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19 of 22 people (86%) found this review helpful
Recommended
34.8 hrs on record
Posted: May 22, 2014
The principle of this game is fairly easy: you start off as a small sphere shaped object (I call it the “cell”) and seek to be the largest object on the rectangular shaped map. The rules are simple: if you touch a cell smaller than you in dimensions, you consume the counterpart and grow larger. If you make contact with a larger object, you will be consumed. You can move only by discharging mass from within your cell in the opposite direction you wish to move along. The repulsive force will accelerate your movement. Of course this will make you shrink and be exposed to new threats. So you better not waste too much mass. You are given only one tool and that is the control over the pace of time.

While the rules are readily comprehensible, the gameplay might be a challenge. There are modes where you are concerned with finding the most economic “route” of consumption from a logistical point of view. In another game mode you will find AI controlled opponents who try to grow large as well and eat you before you can eat them. Lastly, you will find a game mode where the organisms are organized like stellar systems – these maps ultimately require basic knowledge of orbital mechanics in order to be mastered.

No matter what game mode you choose, basic knowledge about mass, force, acceleration, velocity, momentum and gravity will come in handy. I wouldn’t say that this is strictly a physicist’s game though. I am sure the game is also fun for people who play it by intuition only, I would recommend it to any puzzle solving gamer. There are an infinite number of maps - each time you beat a map a harder one will be generated, what a perfect challenge!
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44 of 68 people (65%) found this review helpful
Not Recommended
13.7 hrs on record
Posted: January 30, 2014
When you first start playing Osmos, it's both fun and appealing. However, the later levels increase the difficulty curve far too much. The amount of patience you need to complete some of the later levels is so high that you would need to play the whole level on slow motion and just pray it all goes well.

It's more frustrating than it is fun. Definitely not one I would consider playing unless you have a lot of time to kill and the patience of a saint.
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30 of 43 people (70%) found this review helpful
4 people found this review funny
Not Recommended
3.3 hrs on record
Posted: October 7, 2012
This is just another one of those games where your initial response is, "Ah, yeah. This is interesting. This is different. I think I might like this." and that's how it goes for a few hours, playing short sessions every now and then.

Sooner or later you hit the most brutal difficulty curve where your thoughts change from general pleasure to, "♥♥♥♥ THIS ♥♥♥♥! ♥♥♥♥ IT ALL!" and you quit the game and never look back at it again.

Just another one of those games. How unfortunate.

♥♥♥♥ this game.
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18 of 22 people (82%) found this review helpful
Recommended
4.5 hrs on record
Pre-Release Review
Posted: October 4, 2014
Hemisphere Games is a Canadian developer company that released Osmos back in 2009. They give you the opportunity to control a... well... cell. You need to find other cells that are smaller than you so that you can absorb them and grow bigger. This concept, of course, also means that you need to avoid bigger cells until you are big enough to absorb those, as well. If I remember correctly the criterion on each level is always to become quite big (not necessarily to absorb all the cells on the map).

I like how you need to proper yourself ahead to gain momentum - in the process you are losing matter so you cannot really do this forever as you are gradually becoming smaller. Patience is a virtue!

There are several levels and all are part of 3 major zones - each require you to follow a different playstyle and some of the later levels can be pretty challenging.

The game has an excellent soundtrack full of ambient tracks. They accompany this unique gameplay perfectly. I believe Osmos is one of those indie games that is a must-have.
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14 of 15 people (93%) found this review helpful
2 people found this review funny
Recommended
2.9 hrs on record
Posted: June 22, 2015
My friend recommended this game because "it's relaxing." What a blatant lie that turned out to be. This is the single most palm-sweat inducing game I've played. It's easy yet challenging and the soundtrack is good. I ended up buying this game on my tablet too.

8/10
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Recently Posted
Virck
4.1 hrs
Posted: September 20
I've tried to play this game many times when I'm trying to relax, damn it's stressful.
Helpful? Yes No Funny
sirjaro
1.1 hrs
Posted: September 20
The only game I play for music....
Helpful? Yes No Funny
Filipes
1.7 hrs
Posted: September 19
Great game...
Helpful? Yes No Funny
MDF
7.1 hrs
Posted: September 16
Meditative. Needs patience. A good game.
Helpful? Yes No Funny
humbert humbert
2.6 hrs
Posted: September 14
fat ♥♥♥♥ing new groudns indie game ♥♥♥♥ pile lol
Helpful? Yes No Funny
TrainDriving101
0.3 hrs
Posted: August 29
not as good as fishy
Helpful? Yes No Funny
Tarnith
8.3 hrs
Posted: August 29
Fantastic chill-out physics puzzle game. Challenging enough to be interesting, but in a relaxing atmosphere that gives it longer legs than many other games.
Helpful? Yes No Funny
=-[kI]-= Tissue-Hime
0.9 hrs
Posted: August 29
My overview and opinion on the game in my Steam Backlog episode:

https://www.youtube.com/watch?v=4X3l4RGdkGw

I wish there was a number rating, but I guess the positives outweigh the negatives for me.
Helpful? Yes No Funny
Alishabear
0.1 hrs
Posted: August 26
SSSSSPPPPPAAAAACCCCCEEEEEE!!!!!!!
Helpful? Yes No Funny