finkleroy: When Humble Bundle says that Steam keys will expire, what they actually mean is that they will be removed from your account, but they will still work. They said the Neverwinter Humble Bundle Pack would expire on February 11, 2019, but they're not Steam keys, so I wasn't sure if they would still work. drxenija expressed an interest in it, so I gave them my key, free of charge. They tested it out and confirmed that it worked and they got the content in the game. I will remove the expire date on the main list, and I thought it was worth mentioning here in the thread so everyone's aware of this.
Thank you finkleroy! Was happy to help! Just a heads up for people interested,
The game is 18GB, and has 5GB update, and you need the ARC client to play it.
The code is a DLC and the items you get are:
Ensorcelled Mulhorand Weapon, a Bag of Holding, and a Stone of Health