Robot Invader is hard at work on a big update for Wind-up Knight 2, Called Brimstone Deep.
Brimstone Deep will add 13 more levels - 12 of which are normal, and an extra unlockable "Knightmare" level. There's also a new enemy type named "Ouroboros" and the shop will finally have a reward for collecting all of the gnome’s hats.
We had an opportunity to try out the game a few weeks ago; Wind-up Knight 2 is available for free on the App Store. The Brimstone Deep update itself will be free for those who’ve unlocked the full version of the game when it releases "soon."