Walk RPG

A game about walking and playing an RPG at the same time. The game should work on mobile, so it can track Steps and GPS location. During walks the user can encounter monsters and treasures. When defeating monsters the user's character gains experience. "Special" locations around the world acts as dungeons where players can team up and try to beat it together. There should be a inventory and outfit system, and the player should upon leveling up their character, be able improve their characters ability like strength, health. magic etc.