Just Conway's game of life. Place down cells, and press space to see how they react to the rules of this 0 player game.
Rules of the game: 1. Any live cell with fewer than two live neighbors dies. 2. Any live cell with two or three live neighbors stays alive for the next generation. 3. Any live cell with more than three live neighbors dies. 4. Any dead cell with exactly three live neighbors becomes a live cell.