WARNING: Cell Lab is a very challenging game that requires lots of thinking and experimenting. Reading the instructions will be necessary. If you enjoy difficult simulation puzzles then this is for you.
Cell Lab simulates few-celled organisms. It contains 45 challenges where the player is presented with an environment and has to design an organism that will survive in it. Solving challenges unlocks additional genes that can give cells new properties.
The encoding of the cells behaviour has been made as intuitive as possible without losing generality but it nevertheless takes a bit of effort to understand. Going through the provided tutorials carefully is recommended.