Information in the game database is updated periodically. Below, you'll find that information compiled as pertains to Polyphony Digital. The company may be involved as a publisher, developer or both.
Gran Turismo 3 A-Spec [July 10, 2001]
Gran Turismo 4 [February 22, 2005]
Gran Turismo 4 Prologue [May 18, 2004]
Gran Turismo Concept 2001 Tokyo [January 1, 2002]
Gran Turismo Concept 2002 Tokyo-Geneva [July 19, 2002]
Tourist Trophy: The Real Riding Simulator [April 4, 2006]
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.