If I'm understanding the sub ID of this key correctly, even though Humble marked it as the DLC, it also includes the base game.

If I'm wrong, please let me know! I have a giveaway going exclusivey for the base game here: https://www.steamgifts.com/giveaway/5YOEo/orcs-must-die-2

In the meantime, have a great weekend! :)