I created a topic on steamtrades and traded BioShock Infinite. (The guy I traded with seems to be a good guy but forget his name :( )

I´m new to this trading system and dont much of it.
So my question now is, how can i know if this key is real and works? ( I dont want to use it myself of course ;) ),
because I want to trade it further.
What should I do?

11 years ago

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Closed 11 years ago by BC305.