Why Did Rockstar Cancel Its PlayStation Exclusive Continuation for GTA 4?

At E3 2009, Sony announced it had partnered with Rockstar on a PlayStation-exclusive spy game called Agent, with Rockstar co-founders Sam and Dan Houser overseeing development. However, the game was never made, and Dan Houser has now shared more details about why. Speaking with IGN, Houser said the fact that Agent never came out should not be a complete shock, as he worked on "a number of games that were never released." He said

At E3 2009, Sony announced that it had partnered with Rockstar on a PlayStation-exclusive spy game called Agent, with Rockstar founders Sam and Dan Houser overseeing development. However, the game never materialized, and now Dan Hauser has shared more details about why. Speaking to IGN, Houser said that Agent never coming out shouldn't be a complete shock since he worked on "a number of games that never got released." he said