This is a simulator about natural selection where these little stick-creatures try to evolve and do different tasks by changing how their muscles move, but not their body shape. It’s cool how you can build your own creatures. TO THE DEVELOPER: I know how many people want the creatures’ bodies to evolve, which would be neat, but it would be hard to do. But, I do have an idea for a big update: to add to running, jumping, obstacle jump, and climbing, you should add Swimming. Here’s how it would work: The task is to swim the furthest, like running. There would be a surface where water physics aren’t a thing, and then maybe 25 meters deep would be the ground, because that would be weird not to have a ground. Whatever part of a creature is submerged, it has hydrodynamics applied to it. (Like aerodynamics.) Hope you add this feature and please respond with you thoughts.

For a basic look at how evolutionary algorithms work, this is a fun start. I did however quickly bump up against some limitations which I think could make it better. - Muscles should have maximum and minimum stretch. I tried to make a creature with bones only connected by muscles (no joints) and found that the muscles could stretch to absurd lengths. So much so that they would extend way beyond the edge of the screen - There should be a zoom out/zoom in feature so you can see your entire creature if it extends beyond the edges of your device - It would be interesting to allow exact attachment locations on a bone rather than just the middle - Multiple muscles between bones would also make it more interesting - For experimenting with boneless creatures, it would be cool to have direct muscle to node connections rather than restricting them to bone connections - And finally, for longer simulations (10 seconds or more) the creatures often get trapped in a steady state where nothing happens...

This game is wonderful. You can make different creatures and watch them advance through the generations. There is a lot of customization too. If you can think it, you will most likely be able to make it (Bipedal creations are hard, you won’t really be able to make a humanoid and have it be able to walk). You can customize the neural network used by the creatures. You can have them compete in running, jumping, obstacle jumping, and climbing. But I have a suggestion, please add an ability to change the simulation speed during evolving.