Multiplayer question

[WingedDog]

IP has nothing to do with MP games - subs would be impossible otherwise. CD key only prevents multiple players with the same key in one game. Change of computer, OS, even change of email account don't matter.
So you don't need to quit all your games.

Edit: ninja'd.

[Deathjester]

Ah, that makes sense.

Thank you for clearing that up - and swiftly at that.

[Kheldron]

It's worth noting that the game needs really small space.
I store and run it from my usb key for instance, wether it's at home or on my laptop.

[Deathjester]

That is clever, Kheldron. I will definitely try that.