There currently is no demo to Garry's Mod. Or not one that I know of but if you were looking at getting Garry's mod I would suggest looking a videos of it first and if you want to buy it Garry's mod is a great game with a few different game modes including sandbox where you can build whatever you want to and multiplayer where there is a variety if different multiplayer games to have fun in so You should consider buying it if you are were looking to it is a good deal for 10 dollars.
As of now, there is no official demo version of Garry's Mod available for download. The full version of the game can be purchased and downloaded from platforms like Steam.
Y is there a xbox 360 garrys mod
Off of Steam (10$) (http://store.steampowered.com/)
You Haveto Buy It. On Steam Its 6.99
It
No you need the full game or any other source engine
gmod 9, yes gmod 10-no
Buy Garry's mod 10 off of steam.
Go to www.garrysmod.org and download the latest version of DarkRP.
go to steampowered.com make an account download steam on your computer and then go to the the search bar and type garrys mod and download it it cost $10 you have to have a game source though like half life the cheapest source is half life death match
technically yes, there were a few updates it is still called Garrys mod 10 though
Garry's Mod 10
you cant unless you download an add on (http://www.garrysmod.org/downloads/?a=view&id=46486)