This is a Humble left over. Winner will be sent (by email) a humble gift link and it puts the game straight in your steam library.

Please not that Humble say "This key is not available in the listed countries. If the person you're gifting this to lives in one of them, Steam might prevent the key from being redeemed".
AM AZ BY GE JP KG KZ MD RU TJ TM UA UZ

Good luck.
If you win please confirm game received as quickly as possible.