It said on the Kickstarter equivalent tier, that I would get the first expansion free. I certainly hope that the Crucible Mode wasn’t what you meant, because that is NOT an expansion. That’s a mini-DLC that amounts to almost no new content.
I do not have a code for the expansion in my Humble account.
If you go to the link above, sign into your Humble account and you can use their search bar at the top as eisp did, and if you don’t see your key; then you will need to submit a ticket with Humble so that they can sort you out.
I wish I had a choice in the matter, because the $50 tier has meaningless rewards to me. I’d much rather have the expansion pack than my name in the credits, a corny cosmetic item, and a pdf that I’ll never download or read.