Information in the game database is updated periodically. Below, you'll find that information compiled as pertains to Sumo Digital. The company may be involved as a publisher, developer or both.
SEGA Rally Online Arcade [June 1, 2011]
SEGA Superstars Tennis [March 18, 2008]
Sonic & SEGA All Stars Racing: Transformed [November 18, 2012]
Sonic & SEGA All-Stars Racing [February 23, 2010]
Super Rub-a-Dub [May 3, 2007]
Driver '76 [May 8, 2007]
Go! Sudoku [March 21, 2006]
OutRun 2006: Coast 2 Coast [April 25, 2006]
Race Driver 2006 [June 6, 2006]
TOCA Race Driver 2: The Ultimate Racing Simulator [September 1, 2005]
Virtua Tennis: World Tour [October 4, 2005]
Sonic & All-Stars Racing: Transformed [November 18, 2012]
There are numerous companies in the industry, and their names change like the weather. The information above is not particular about the finer details. Acquisitions are common, so companies with no recent listings may still be developing games under a new name. For example, DMA Design currently has a Rockstar name. Do you know of a title that is not listed above but should be? Be sure and let a staff member know. You can contact staff if you click here.