Underbound

Underbound is a fan game currently in production being made by Team Switched, and is being made by separate people within the team along side Underswap.

Description
"The story so far:

A young boy named Face finally learns how to love. Joined by his brother, he digs his way deep into the Earth’s crust in order to heal the aching heart of the planet with a song. But does love truly exist? UnderBound answers this question, and surely will usher in a new revolution.

Gamers beware: we’re playing for keeps this time."