This is one of the best game IF you have all the textures that cost around $30 so with garry's mod its $40. But it totally worth it the most important textures you need is "Counter Strike : Source". Other textures u need u can get from "The Orange Box" it comes with a few games, like "Half Life 2" and "Portal". Download them and they will automatically added to Garry's mod after awhile. Garry's mod is a Creative game you can make your own game modes, or play others modes that they made. If you want a fun game get this.