This cellular-automata-style simulation was the inspiration for 'ColonySim.io'. This Java version offers the user a simple simulation between colonies. All cells try and reproduce to other cells around them and will fight any other colony that occupies the new tile they want to reproduce to. The green cells you see on the frontlines of each colony (and also scattered across the map) are cells that have died from either old age, or from being killed by another cell.