Got Half Life 2 off E-Bay game will not load as it as been loaded before. Steam came on screen asking for code this I loaded, told as it had been used, game would not run. The game was quite legal. But I had waste my money so if you buy from sites like E-Bay check if VALVE {Steam} is on box. Also if like most of us you sell a game on once done don't buy one with this on box as it won't work for the next buyer.