Sumo Digital

Sumo Digital Ltd is an independent game development studio based in Sheffield, United Kingdom. Set up in 2003 following the closure of Infogrames Studios Sheffield/Gremlin Interactive.Sumo currently employs more than 270 development staff, many of whom had previously worked together at Infogrames and Gremlin.

Under Sega's supervision, Sumo Digital was responsible for the development of the Sega Superstars games.

Sonic/Sega Superstars Games

 * Sega Superstars
 * Sega Superstars Tennis
 * Sonic & Sega All-Stars Racing
 * Sonic & All-Stars Racing Transformed