GMod is a modification, it requires base games in order to run properly. Just like other source mods out there. I don't get why people can't understand this fairly simple concept.
"Garry's Mod was originally a modification for HL2, but now it's a standalone game." says Wikipedia
I mean yes sure but in reality that statement's a lie because you need to buy another game. Who cares if it's a fairly simple concept, killing someone you don't like because you're crazy is a very simple concept but it's not a good concept.
sorry that isn't a good brown townogy i couldn't think of one