Made a simulation/game in java using swing that runs on this algorithm:

-2D array was made (kinda like a chessboard).
-Random living cell was placed on the board.
Repeat:
-If a cell has X or less cells around it (living) it duplicates.
-If a cell has Y or more cells around it, it dies.

I was amazed at the types of shapes this created. There were so many variables I could play with, and probably spent hours just experiementing. I was really satisfied in the end. 😄