Phantasy Star III: Generations of Doom is a science fantasy role-playing video game developed and published by Sega. It was released for the Sega Genesis in Japan in April 1990, and worldwide the following year. It is the third game in the original Phantasy Star series, and is a distant sequel to the previous games, with the connections to those games not being immediately obvious. However, gameplay is similar to the previous games, with turn-based combat and random encounters. Players explore various overworld maps and dungeons in order to progress through the game.