Transform into a bird and fly to explore and experience a vibrant world of floating islands in the sky. Venture down into lost ancient ruins where each step leads you closer to the end of the world. AER puts you in the shoes of Auk, a magical shape-shifting girl who can transform between human and bird.

The gods of old are forgotten, lost in the events that shattered the world, leaving only fragments of islands in the sky. This mystic world of endless skies, colorful islands and ancient ruins is in danger of falling into darkness. As one of the last few shapeshifters, you are sent on a pilgrimage to the Land of Gods. Uncover the secrets that will help save reality itself.