Type Private
Founded January 12, 2000
Headquarters Tokyo, Japan
Key People Tetsuo Mizuno
Industry Video games
Products Mario & Luigi series

AlphaDream Corporation Ltd. (or just AlphaDream) was a Japanese video game development studio who was responsible for the development of games in the Mario & Luigi series.

On October 1, 2019, the company ceased operations immediately after filing for bankruptcy, citing sluggish revenues and the high development costs exceeding overall debt.[1][2]


Originally known as AlphaStar, the company was founded on January 12, 2000 as a second-party developer for Nintendo. Their first game, Koto Battle: Tengai no Morbito, was only released in Japan for the Game Boy Color.

Released games



  • In Mario & Luigi: Bowser's Inside Story, one of the bosses, Alpha Kretin, represents the company's logo.
Community content is available under CC-BY-SA unless otherwise noted.