For sale: Enter the Gungeon key

Long story short I bought a key off GMG without checking to see if the person I bought it for already had it. Now I have a key to a game I don't want and I'm out $15.

Will sell in exchange for $15 (Amazon or Steam or something) or a copy of Slain or March of the Living. PM me if interested. If we're not Steam friends -- and we're probably not -- a GMG key will be fine, but they only have Slain.

No takers? Alright then. :/