Hello and welcome to another Steam key giveaway.

When I attempt to redeem this key, I get the following message:

Mark of the Ninja Retail
This Steam account already owns the product(s) contained in this offer. 

Since I already own the game, I'd like to give this key away here on SteamGifts.

*Please allow me to delete the giveaway if the key doesn't work.

Thanks, and good luck!