ConwayLife.com

I was curious if anyone has implemented two competing populations in Conway's Game of Life. I know it has been done in SQGOL, but that isn't compatible with golly . . .
From the rules created, I can't seem to find anything like this and I'm not sure if it is possible in golly.
Has anyone tried ...

Hello,
I'm new. I have a question. How i can make a spaceship?
Please guide me! Thanks in advance!