Developer: Cartwheel Games
Platforms: PC, Mac, Linux
Price: Preorder for $10, free alpha available
Releasing late 2013
"Against the Wall is a first-person puzzle-platformer set on the side of an infinite wall. Entire civilizations and ecosystems cling for survival on the side of the wall, everyone and everything existing under the constant threat of tumbling into an endless sky. The wall is made up of square white bricks of varying sizes. You can pull these bricks out of the wall to form platforms, stairs, and paths. Along the way, you'll encounter cities, forests, volcanoes, castles, and other environments in your journey through this strange world."
here or preorder Against The Wall here.