I got this in a bundle of randomly selected keys, as well as several other things, so there should be other giveaways linked as soon as they're posted. Enjoy!

PAYDAY 2: https://www.steamgifts.com/giveaway/ddah6/payday-2
Darkstone: https://www.steamgifts.com/giveaway/EBPgd/darkstone
The Wild Eight: https://www.steamgifts.com/giveaway/YMhRE/the-wild-eight
Curse: The Eye of Isis: https://www.steamgifts.com/giveaway/edhX4/curse-the-eye-of-isis