I have looked at GMod for a while now and should have bought it when they had it for 5 dollars, and I now have an extra Portal game because of the pre-purchase of Portal 2 I made. Both games are the same price, and I am looking for someone trustworthy to gift my extra Portal game for your gift of GMod. Not sure how fun GMod is but I see people in the TTT server a lot or some other server and want to check it out :]