Hey guys i am here new and want to play online but i cant connect to the server what i need to do i installed: Half life 2 Half life 2 deathmatch CSS CS
Install CS:S, HL2, HL2 DM, and the Source SDK Base (not the Source SDK), then install Gmod9 from here and it should run. You need to patch the gameinfo.txt like in this thread to play in the servers.