You are in the Forest now, and the only way to leave it unharmed is to listen.

Umbra is the game about the Forest, a dark and scary place you've find yourself in once. It's too dark to see. Your goal is to reach the Bell, the mark of Shelter. Your only tool is a small bell and an ability to listen where enemies are.

Game desk is two-dimensional, and you can't see it. Use Bell buttons to probe cells aDragon Tiger liveround you. Listen for direction and delay between your bell and a returning sound, and you'll find the safe way.
If you play a Chain mode, every next bell marker on a map will sound higher helping not to loose your way. Only the last one will be a Shelter Bell itself.

It's recommended to use headset or another stereo sound system.

Many thanks to Nina Rudenko for art and visual part of this game.