What irRegular Games has done is to take Conway's Game of Life and apply goals to it. On one level, you might have to maintain a constant number of living cells. On another, you might need to exterminate them all within a certain limit of turns. The reason this works as a game is that Conway's Life is an efficient factory for stories and characters. The winking Traffic Lights. The steadfast Boat. The expanding Bee Hive. And everyone's favorite, the sidewinding Glider... and his nemesis, the Block.