So my brother and I would like to find a way to play DOOM (the shareware version) across the net. When we were in the same town, we simply used a null modem cable and away we went. I did some checking through google last night, and supposedly zdoom is about the best there is for this sort of thing. However, it was painfully slow.
I did start to look into Kali, but for that you apparently need to register for $20 or you can play for only 15 minutes at a time.
Anyone know how to play for free across the net?