When Pigs Fly tells the story of a pig who conveniently grows wings after falling down a hole and finding itself trapped inside a dark cave. Unfortunately the pair of wings are preventing a quick escape from the same entry point, so the only thing left to do is to explore the caverns and seek another way out.

Progress is automatically saved whenever the player arrives at a new screen, so you can always close a browser window and still continue the game from where you left off at a later time.