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 (755 reviews) - 88% of the 755 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
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Overall:
Very Positive (755 reviews)
Recently Posted
Captain Titus
12.9 hrs on record
Posted: August 23
Osmos has you playing as a mote/organism, where the goal is to consume all others and become the biggest. Sounds simple, right? WRONG.

As many have noted, Osmos begins in the vein of a "casual" and relaxing game, but that changes before long. Once you've completed the entry levels, you're thrown into the deep end. The levels combine physics and mass/matter management, and you really have to focus and plan ahead on the later stages. Some of these levels are a little ridiculous though (Epicycles 3!) and require both luck and skill to complete.

As a helpful hint, the below blog was written by the developer and contains some helpful hints:

http://www.hemispheregames.com/2010/02/03/osmos-rage-part-4-roadside-assistance/

Its cheap, its entertaining, its challenging. Grab this if you're looking for something different, or something to test you and keep you occupied.
Helpful? Yes No Funny
Brother Alpha
0.4 hrs on record
Posted: August 1
I really wanted to like this game. I’ve played a number of similar games in the past and enjoyed it. I thought the hook of expelling mass to move would make the game more interesting, but the levels just made it more frustrating to play.

I would grab Sparkle Evo 2 instead.

http://store.steampowered.com/app/253650/
Helpful? Yes No Funny
Tovstonog
10.3 hrs on record
Posted: July 16
One of the greatest games ever made. Neat idea, elegant design, challenging gameplay, fantastic electronic music that speeds up or slows down according to the manually controlled game speed...everything about this little game is top-notch. And don't be fooled by its deceptive simplicity or the word "casual" in the tag section, since the hardest Epicycle levels may drive you mad (and probably will if you persevere in getting all achievements).

10 epicycles out of 10. Masterpiece.
Helpful? Yes No Funny
FedEx
0.8 hrs on record
Posted: July 13
Simple game with enjoyable gameplay. Great for kids or when you just want to relax. Music is very soothing.
Helpful? Yes No Funny
Croiss
0.2 hrs on record
Posted: July 5
It's the same as the Phone App. But whatever. #PCMASTERRACE
Helpful? Yes No Funny
Charles_zip
3.1 hrs on record
Posted: June 24
Good for relaxing.
Helpful? Yes No Funny
Flyboy Connor
0.2 hrs on record
Posted: June 18
This is another one of those games for which the designers think they can make it fun by making the controls frustratingly hard to use. The price is ridiculously high too. If you do not mind getting frustrated by really sluggish responses to controls, and paying through the nose, then it can probably be fun. I personally cannot stand games like this.
Helpful? Yes No Funny
pkp
5.7 hrs on record
Posted: June 5
Osmos is based around a fairly simple concept. You are a mote. You propel yourself by shooting out part of your own mass.
You get absorbed by motes larger than you. You absorb motes smaller than you.
On every level, you are attempting to grow much larger.
There is a time control mechanism allowing you to speed up and slow down how quickly time passes. This is essential.
Why you may need to speed up time: You're moving in the correct direction, but very slowly. You could speed yourself up by shooting out more of your mass, but you generally don't want to waste mass doing that.
Why you may need to slow down time: Sometimes things are moving fast and you need to propel yourself in a very particular direction.


Pros
+ Decent variety of levels. For example:
* Entire map covered with motes and the motes are non-moving. You start in middle and have to carefully maneuver yourself around. Be careful! The pieces you shoot out can hit the other motes and start to move them. These feel a little bit like puzzles.
* Orbits. You and other motes orbit around one or more "Attractor" motes.
* Sentient motes. You have to absorb some motes that have some basic AI.
+ The orbit prediction arc. This arc predicts your orbit around another object. You can then see if your path matches what you want. The game would've been too hard without it.

Cons
- Can be very frustrating. You may have been playing a level for 10-15 minutes when you lose because of:
* a moment of inattention.
* you realize you've reached an unwinnable state. That one other mote you need to absorb is just a tiny bit bigger than you. (Note: the game will warn you when the level has reached an unwinnable state. You'll see "Doesn't look good..." at the bottom of the screen. However, that warning is often late.)

Overall
If you're prepared for a lot of frustration, Osmos can be a rewarding game.
Helpful? Yes No Funny
🐾 Sythe 🐾
30.3 hrs on record
Posted: May 28
Easy to learn, Frustrating and near impossible to master.
Beautifull graphics and soothing music combined with challenging gameplay make this an experience that's worth the money in my opinion.
I heavily reccomend this game, even thought the price might be a little bit high for the amount of content.
Helpful? Yes No Funny
joe01489
2.0 hrs on record
Posted: May 24
Nice, challenging game concept in a similar vein as the .io series. The main differences between Osmos and Agar.io is that Osmos is much more difficult when it comes to learning controls, and it's not multiplayer.
Helpful? Yes No Funny
Most Helpful Reviews  In the past 30 days
2 of 2 people (100%) found this review helpful
Recommended
12.9 hrs on record
Posted: August 23
Osmos has you playing as a mote/organism, where the goal is to consume all others and become the biggest. Sounds simple, right? WRONG.

As many have noted, Osmos begins in the vein of a "casual" and relaxing game, but that changes before long. Once you've completed the entry levels, you're thrown into the deep end. The levels combine physics and mass/matter management, and you really have to focus and plan ahead on the later stages. Some of these levels are a little ridiculous though (Epicycles 3!) and require both luck and skill to complete.

As a helpful hint, the below blog was written by the developer and contains some helpful hints:

http://www.hemispheregames.com/2010/02/03/osmos-rage-part-4-roadside-assistance/

Its cheap, its entertaining, its challenging. Grab this if you're looking for something different, or something to test you and keep you occupied.
Was this review helpful? Yes No Funny
Most Helpful Reviews  Overall
182 of 198 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.
Was this review helpful? Yes No Funny
54 of 59 people (92%) found this review helpful
26 people found this review funny
Recommended
2.1 hrs on record
Posted: May 27, 2015
Agar.io before it was cool
Was this review helpful? Yes No Funny
48 of 58 people (83%) found this review helpful
14 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.
Was this review helpful? Yes No Funny
24 of 28 people (86%) 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
Was this review helpful? Yes No Funny
18 of 21 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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43 of 66 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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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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27 of 40 people (68%) 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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