This one was a lot of fun, definitely had some of the toughest puzzles you've put forth. I might have figured them out but I liked that the hints were available.
I also got some runic from a snowman that I didn't receive. I'm not sure I'm ever receiving my snowman rewards, actually. Also, the "You have a pickaxe to upgrade" used to not count the runic pickaxes and now it looks like it is.
One thing I've noticed is that my Daily rewards are bugged. It says I'm on Day 1 constantly, even when I didn't log in over the weekend. It's really hard to keep up on runic on special pickaxes without these rewards.
 "Tales of Nebezem: Gnomish Plot"){kind=icon}
 "PickCrafter"){kind=icon}