Okay this may seem like a basic question but i am new to the game. If i want to play a LAN game does everyone have to have a seperate copy of the game to play. What i would like to do is have a game on our network at home with me and my two sons. If that doesnt work then can i have a PBEM game and just install the same copy of the game on each computer? I have Civ 4 and the Warlords expansion right now. Back in the Command and Conquer days you could have one person use the Russian disk and the other use the American disk and both could play online. Thanks in advance for any help.