Owlboy is described as a 'hi-bit' game, a title with 16-bit-style visuals where you can fly and explore a world in the clouds. Owlboy needs to pick up friends and bring them along as he explores the open skies. He also needs to overcome obstacles and greater enemies.
The adventure starts in the village of Vellie, a close knit community carving out a living on the floating islands. Otus and his best friend Geddy are tasked with patrolling for sky pirates but they charge off to catch a bizarre laughing troublemaker. The duo stumble across a forgotten cave full of ancient owl mysteries. After the trail goes cold and the two head home, the village is swarmed with sky pirates. People are shaken up but it looks as if the pirates were preoccupied with something else and the capital city of Advent.