I love that something that is based on only 4 simple rules can create something so cool. Have a read through this article on Wikipedia if you want to know more about it.

These are the rules:

1. Any live cell with fewer than two live neighbors dies, as if by loneliness.
2. Any live cell with more than three live neighbors dies, as if by overcrowding.
3. Any live cell with two or three live neighbors lives, unchanged, to the next generation.
4. Any dead cell with exactly three live neighbors comes to life.

Have fun playing! Here is the source if you’re interested.