Sonic & Sega All-Stars Racing (ソニック&セガオールスターズレーシング Sonikku Ando Sega Ōru-Sutāzu Rēshingu?) is a kart racing video game in the Sega Superstars series produced for Wii, Xbox 360, PlayStation 3, Nintendo DS, Microsoft Windows and Mac OS X, featuring characters from many Sega franchises. It is published by Sega and developed by Sumo Digital. It was announced on May 28, 2009 and was released in North America on February 23, 2010 and in Europe on February 26, 2010, with the PC version available both from retail and via Steam. A mobile version has been developed by Gameloft. An arcade version of the game is currently being tested in some arcades as of January 2011, was publicly shown at the EAG Expo in London on January 25, 2011, as well as the ETI Asia China Expo in August 2011, and was released for sale in March 2011, according to the manufacturer. The game was released for iOS on June 18, 2011. The Mac OS X version of the game was released on April 4, 2013 by Feral Interactive.
A sequel, Sonic & All-Stars Racing Transformed, was released in 2012.