Psychonauts is a 2005 platformer adventure game produced by Double Fine. It follows the adventures of Razputin Aquato, AKA Raz; a ten-year old psychic who ran away from his family circus to become a psychonaut. The game follows him through the minds of camp counselors, inmates in an abandoned asylum, and of course, a giant hulking lungfish.
The game is known for its clever writing, humor, and artistic style, and although it was not a financial success, it still remains a classic among other amazing platformers and adventure games.