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Steam
Buy Garry's mod 10 off of steam.
There is, 10$ Steam
10$ through Steam
Garry's Mod has now updated and includes all features of 13 Beta
You Do Not Get Garrys Mod Serials, You Buy it Off Of Steam Which can be found at steampowered.com its usually about 21 United States Dollars
No. Go buy it at steam...
Buy it off Steam, easy.
There is no "Disk version" for garry's mod, you have to buy it from Steam
If you use steam, right MB on the picture in steam and then delete.
All steam games update themselves automatically.
Off of Steam (10$) (http://store.steampowered.com/)