Cellular automata are discrete computational models that are represented by a grid with cells. They are visualized by evolving that grid according to certain rules, that is typically a state function of the existing cells.
The rock-paper-scissors model uses a state function similar to the game of rock-paper-scissors, where cells change in a cyclic way depending on the state of their neighbourhood.
The grid starts with a random initial state.
With 3 colours, with neighbour threshold of 3 for a transition and without wrapping edges
With 4 colours, with neighbour threshold of 3 for a transition and with wrapping edges