If you've been having trouble with Garry's Mod lately, specifically the error, "Unable to shade polygon normals," don't take it to the Steam forums. You can solve that issue rather easily -- by buying ...

Garry's Mod is recognisable as the daring, frankly filthy sandbox game that rose out of the the early Half-Life 2 modding scene. It was one of the first to arrive, and it ended up on Steam as a ...