Lifelike

Lifelike - Cellular Automata Simulator in Minecraft

Adds a special block to the game that allows you to reproduce various cellular automata algorithms, such as Conway's "Game of Life", Rule 110, and many others. To activate the simulation, simply apply a redstone signal to the block.

The mod's feature is almost complete customization of parameters: you can change the simulation rules as well as the types of blocks used in the modeling process.