Hi there, I don't own a copy of Half life 2, so if I want to get a copy to edit some existing maps available, what would I need? A pre-owned copy of the game or some kind of online purchase? I believe a editor called Hammer? I'm running a 32 bit Windows xp system, so should be no problem. And lastly, for scripting, or more so programming C++? This game isn't like the Quake 3, or Id tech Doom 3 type a script here or theresetup? Thank you, take care. I can still edit this game, there are still moders for it. Is the online version moddable?