[Uzinero]

Extra copies, games you don't play anymore (ex; A friend of mine had 15 copies of Terreria and was just giving them out)

Ahh. Sorry but nope. I've only ever had a few duplicates, I gave most to my dad or brother, or if they were worth something and not something they'd be interested in I'd sell it on steamtrades. I've only ever sold one though (and got scammed for it because I was a noob and didn't check shit properly, £8.50 gone.) and the rest I just gave to them.