Are you looking at Keys as well or just Steam items that you can trade for? Because I have about 8 pages worth of games on my humble bundle account that I haven't used.
EDIT: Sorry, just saw another post that had been closed and it linked to the rules, didn't realize you couldn't trade keys like that, please disregard.
This post was edited by Phayze87 on Jul 13 2019 06:26pm