Dominions 2: King of Turn-Based MP Games

[Oversway]

Space Empires IV. Particually the SEIV since I still bounce back and forth between that and Dom2

I'll second what Gandalf Said. SEIV is a great "Offline-Simultaneous turn" game. The SEIV mods are really help the game shine, just like dom2.

[RibbonBlue]

Dom2 rocks.

[NTJedi]

I've always done HOMM_3 over a home LAN... which works fine. HOMM_4 had so many problems it only lasted about 3 weeks on the computer. HOMM_3 still lives on my computer.