Stealthy Sporkk
Green Slime
Is there any way we could "upgrade" to a higher pre-odrer tier without straight up buying another pre-order key?
We're curious about this one as well! We'll e-mail Humble Bundle to see if they have any good solution to this.
Relevant sidenote: I'd be interested in the behind the scenes book when it's available, because the blog posts are always so interesting, but I don't want the entire tier of stuff. How about offering it to buy separately?