Can you play over lan with multiple computers and the same CD key? Normally I would assume so, but after CC generals and COH Opposing fronts both didn't work im becoming pessimistic.
Tbh i have never actually tried it, i assume so but there is only one way to find out.
buy 1 copy and everyone uses it? I don't think that would work...could be wrong?
Love is the answer
most of the newer games have made it so you can't LAN with everyone using same CD-key... I guess the game developers found out about hamachi