Brothers Tim and Chris Stamper are British entrepreneurs who founded the video game companies Ultimate Play the Game and Rare. They first worked together on arcade conversion kits, which were licensed to companies, but later became developers for the ZX Spectrum home computer in the early 1980s. Chris programmed the games, while Tim designed the graphics. They found success as Ultimate with games including Jetpac and Knight Lore. After reverse engineering the Nintendo Entertainment System and deciding to shift their focus to console development, the brothers founded Rare in the mid-1980s. They became Nintendo's first major Western developer, for whom they developed licensed games and ports. Over the next two decades, Rare enjoyed a close relationship with Nintendo and developed multiple ma