Here are the original simulation rules. There is a playing grid. On this grid, there are a number of randomly placed living "cells". These cells obey very simple rules. First, if a living cell has two or three neighbors, it will continue to live. Second, if it has fewer than two neighbors, it will die of loneliness. Third, if it has more than three neighbors, it will die of overcrowding. Fourth, if an empty block has three living neighbors, a new cell will be born in that block.
I have turned this simulation into an interactive game. Between each generation, the player can tell any of the living cells to move. However, each cell may only move one square. Also, a cell may not move onto another living cell, or off the grid. The object of the game is your choice. You can try to grow as many living cells as possible. Or, you can simply see how long you can keep living cells on the grid. You decide.