3.7
18.1K reviews
1M+
Downloads
Teacher Approved
Content rating
PEGI 3
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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
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

Ratings and reviews

3.8
15.7K reviews
Xanthi Carretas
July 10, 2024
This game is amazing! Of making creatures and understanding how they move around, the only changes I want is that when you evolve your creature in the "flying" category is that you can move the camera freely instead of it focusing on the best creature, please make it a feature you can toggle on and off, because sometimes my creature gets off screen even when the camera is fully zoomed out, If you want to learn more, I have a channel that I might post this game on, 'YourLostTVRemote"
16 people found this review helpful
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Gage Stepek
September 7, 2024
Sweeeet, thanks for the update 2022!!! Great job! Creatures need to be able to set or detect orientation. Also we need to be able to zoom out more, and have more vertical viewing distance. When creating a flying creature you can't see much more than the initial viewing area preventing you from seeing a full flight. Designer needs measurement tools + multi select, arrow tool when bones + joints are near. A drop down menu with different brain suggestions "types". Add the best voted from discord.
47 people found this review helpful
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Levi Bickford
August 13, 2024
The game is great but the one and only things I want is for u to make the wings more affective, and when u select the muscle make a, can contract button with the, can expand button, and finally make it where u can control what the muscles do with either keyboard controls, or a thumb stick and a contract button and a expand button. If u do those changes I'll change this rating to five stars and it will say, this game is absolutely perfect. For the people reading this, it's a good game so play it.
11 people found this review helpful
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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