Humdle

Humdle is an adventure game about escaping from a dark room whose shape you cannot see. You can move up, down, left and right, and each move gives you a clue about where you are. Find your way around dead ends and backtrack to explore other routes.

Some spaces follow rules that can help you escape. Reach the highest point to get out. You can also draw on the screen to map your route, though using this feature is optional.