ROFL! I can only play a few minutes of the game at a time. They have a version called Garry's Mod that lets you design your own Half Life games. So every day I do a little bit so I end up making my own Half Life game and when I'm done I'll upload it so others can play. It's a great way to learn all the ins and outs of developing your own computer games! Once you prove yourself companies pay you top dollar to join their developement teams.
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