there's maybe another possibility.
what about a hardware key,?
a some kind of modified usb-stick you have to plug in your pc before you can play the game?
A dongle...are they still used?
They're easily cracked too I believe, and having to use them could be a pain. Also, what if it broke?
Bring back the old days of copy protection...you have to look in your manual, on a certain page, 3 lines down, 4th word, and type it in to start the game!!
Just kidding....
Freddy
