Darkraven Games has a Kickstarter campaign running for Dungeon Ravenstein, their new fantasy terrain gaming mat.
From the campaign:
Our goal this time is to bring to life the dark dank depths beneath the popular Castle Ravenstein. These areas have been swallowed by time, corrupted by a power hungry madman, and eternally plagued by the presence of an impossibly ancient evil!
Your contribution will help us create a whole new set of 48″ x 36″ Mega Maps!