No it is not. It requires one of the games in the half life 2 series such as TF2 portal or half life 2.
Chat with our AI personalities
On steam
if your talking about the gmod that you buy off steam, nothing game wise oh, and $10
Garry's mod 9 is free, it was the last free version. it uses steam to launch as it resource files are all valve games. you cant star gmod without steam
steam/steamapps/username/gmod/gmod/data/adv_dup(or something like that)/* *place dupe .txt file or file folder with dups in it, here)
simply press E on the keyboard next to the cars door :) i play gmod add me on steam username is kayden