Released in 2010 for the Nintendo DS, Percy Jackson & the Olympians: The Lightning Thief is a role-playing video game developed by Griptonite Games. It is based on the first book of Rick Riordan's Percy Jackson series. Players control Percy and his friends as they battle mythological foes and embark on quests across the United States to find Zeus' missing lightning bolt. With turn-based combat and an emphasis on the Greek mythology that underpins the story's world, this game is designed both to complement the book and the film adaptation.