Forgive my ignorance, but could this be done with digital distribution?
Say, like, I get my friends to download Impulse prior to a LAN, give 'em my login details and tell them to install Demigod... Would this work? Furthermore, if I were to do this, what's in place to stop my friends from abusing this, afterwards? If they like the game, I'd like to encourage them to, y'know, BUY IT. But if they have a completely functional copy on their PC already (well, excluding online multiplayer functionality), I suspect some of them would be less inclined to do so. 