From Wikipedia: Rare, Ltd. (formerly known as Rareware) is a British video game development company. It was founded in 1982 by brothers Tim and Chris Stamper as Ashby Computers and Graphics Ltd. (ACG). Publishing as Ultimate Play the Game, they developed games for 8-bit platforms such as the ZX Spectrum, the Commodore 64 and the BBC Micro, before the name was sold to U.S. Gold in 1985. In 1994, Rare entered an exclusive publishing agreement for Nintendo gaming consoles. In 2002, Rare was acquired by Microsoft.