18.1K reviews
Teacher Approved
Content rating
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About this game

Use joints, bones and muscles to build creatures that are only limited by your imagination. Watch how the combination of a neural network and a genetic algorithm can enable your creatures to "learn" and improve at their given tasks all on their own.

IMPORTANT: This is a simulator and not a game! If you are not interested in the concepts of natural selection, genetic algorithms and neural networks and watching them work together then this is probably not the app you're looking for! Everyone else, please continue reading :)

The tasks include running, jumping and climbing. Can you build the ultimate creature that is good at all of the tasks?

I want to stress again that there are no real objectives. Even if a creature of yours reaches 100% fitness, you don't win anything except for (hopefully) lots of excitement and joy.

IMPORTANT (again): The simulation is pretty CPU heavy so it will crash on most old and/or low-powered devices. If your device does not meet these minimum performance requirements you should NOT download this app!
If you just experience some lag you might be able to improve the fps by lowering the population size in the start menu.

For more information on how the algorithm works behind the scenes and everything else you might be interested in click on the "?" button in the creature building scene.

1.1 Update: You can now save and load your simulation progress.

There is also a Mac & PC version available for download and a browser version for you to try out on the main project website (keiwan.itch.io/evolution).
Updated on
Oct 13, 2022

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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Ratings and reviews

15.6K reviews
Nicholas Mcintosh
May 4, 2024
I think Evolution is an amazing game with a really cool concept of making characters in the game that evolve in how they move over time. You can never expect the exact same outcome with how one of your characters moves around and the way they move and behave mutates like it does with organisms in real life. I like the variety of options such as climbing, running, jumping, and flying, but I would recommend adding swimming to the game.
11 people found this review helpful
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Tab Cell
September 12, 2023
Really cool, but I would love a game mode where the creature not only learns how to use its body, but also over time has its body change in the event the map has a wall, it would evolve, all the while chasing after food which has a hunger meter, and of course, only the survivors go on to pass down the traits, although they only have so much energy, and can only grow so much. I know that might be a lot to ask, but I wanna be able to make a simple worm, and comw back hours layer to see what I get.
111 people found this review helpful
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Cosette Klos
June 14, 2022
This is a really well made basic evolution game, good job! Its very fun messing with nodes trying to make things that work, and its also fun bugging out the game by spamming parts. Though it would be nice to have a sort of "death selection".. What It means is being able to select parts that when you use the Evolve button and the parts selected touch the ground, the creature dies and is unable to reproduce. Just a sort of suggestion though, thanks if its added though!
38 people found this review helpful
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Keiwan Donyagard
October 11, 2022
Thanks for the review! You can now select joints and define a "fitness penalty" that should be applied if that joint ever touches the ground during the simulation.

What's new

- Added wings and a flying task
- Define a fitness penalty if certain joints touch the ground
- Assign IDs to muscles that should expand and contract at the same time
- Exiting a simulation will now load its creature design into the editor
- Bug fixes
- Stability improvements
- Fixed launch crash on Android 12