Matrix Games Forums

I'm having trouble playing online with a friend. I have Windows 10 (64 bit) & I think he's Windows 8.1ish.

Both players must allow the game access through their Windows firewall and also (assuming you have a router) set up their router to forward the game ports to their local machine. The exact steps for this vary depending on your setup -- see this thread for details: https://www.matrixgames.com/forums/tm.asp?m=1945059