Knytt Underground

Knytt Underground begins long after the human race has become extinct. The planet surface is scorched from a long forgotten disaster, leaving the surviving species of sprites and fairies to retreat underground to rebuild civilization. Surrounded by the discarded remains of the human race, these tiny creatures have founded their beliefs on the artefacts they have discovered. One of their more infrequent rituals is that every 600 years, six bells must be rung by a sprite from the Sprocket family, or the world will end.