Owlboy
Owlboy is a platform/action-adventure video game from Norwegian developer D-Pad Studio. In this flying adventure platformer you'll explore a vividly designed pixel world. The mute Otus has a hard time living up to the expectations of owl life. Things come to a head with the sudden appearance of sky pirates. What follows is a journey through monster-infested ruins, with unexpected encounters and burdens that no one should have to bear.
Story
From Wikipedia: "Owlboy is set in the land of Heaven; the islands of the lower world have been separated by a cataclysmic event. The player controls a boy named Odus, who belongs to an owl-human hybrid race called Owls. When Odus' village is attacked by a band of pirates, he embarks on a journey to save it from them."