Bles is a Basic Little Evolution Simulation contained within a persistent online multiplayer world.
How does it simulate evolution?
The mechanics of Bles are fairly simple:
Natural selection takes place as only the fittest are able to compete for food and find mates.
Nothing is free and everything has cost/benefit.
There is no 'optimal' solution, merely what is best for the current environment.
There is a bit of luck involved with mutations and being in the right place at the right time.
Keep in mind, whilst Bles may serve as general introduction to the concepts of evolution, it is not intended to be highly scientific.
What do I do?
Either simply explore the world, or get involved by adding food and artificially selecting which species survive.
Alternatively, if you think you can out smart natural selection, or you've identified a potential niche in the current environment, Bles enables you to get creative and intelligently design a new species to introduce to the world. Simply click/press on the world for a second to open the menu, click Hammer, then Edit and build away!