A solid concept and an interesting game, but I feel the idea of paying close attention to your surroundings would work a lot better in a less maze-like game. There are twists and turns, dead ends that don't feel like they play well into the core mechanic, which doesn't gel well with being lost. But the core mechanic was fun, and I quite enjoyed it.
It took me embarrassingly long to check the menu and figure out how to climb ladders >.<