@matrix 6 of those use the same engine
@colonelj
And? They are still different games.
@matrix barely. takes years to make a new engine
@colonelj
You don't need a new engine for a new game and GTA V's engine is "just" a newer version of GTA IV's engine.
@matrix 6 years apart and planned gta5 released same year of ps4
@colonelj
5 years after GTA IV and only 3 years after Ballad Of Gay Tony. Instead of making good single player content, they are milking GTA Online.
@matrix i never played gta4 nor do i own a ps4 
@colonelj
GTA IV and V came out on the PS3.
Ted Hart-Davis 
