Myst is a best-selling computer game developed by Cyan Worlds and released in 1993. It is a puzzle-based adventure game set in a surrealistic world with no set goals or plot. Players explore the world and solve puzzles to progress through the game. Myst was one of the first games to use pre-rendered 3D graphics and has sold over 12 million copies worldwide, making it one of the best-selling computer games of all time.