Grand Theft Auto Universes

GTA Universes are the different fictional "universes" that GTA games are set in. They are different from eras in the sense that a game is in the same era as the most recent numbered game (ex. GTA San Andreas and GTA Vice City are in the same era as GTA III) while universes are the different sequences of events that have happened in the games. The universes are named based on the visual quality in which the game is played. They are separated based on the same principle and the events that have taken place in the universe.

There are currently three universes in the GTA series:
 * 2-D Universe
 * 3-D Universe
 * High Definition Universe

2-D Universe
There are a total of four games (including two DLC's) that take place in the 2-D Universe: This universe gave people a 2-Dimensional world with an up-down view.
 * Grand Theft Auto
 * GTA: London, 1969
 * GTA: London, 1961
 * Grand Theft Auto 2

3-D Universe
The 3-D Universe includes a total of six games: This universe has more games than any of the other universes. It has also sold more copies (over 57 million) than the others. GTA III introduced a breakthrough in gaming by giving people a 3rd person view of a 3D world that they could explore. Every GTA after that has used the 3rd person view.
 * Grand Theft Auto III
 * Grand Theft Auto: Vice City
 * Grand Theft Auto Advance
 * Grand Theft Auto: San Andreas
 * Grand Theft Auto: Liberty City Stories
 * Grand Theft Auto: Vice City Stories

High Definition Universe
The High Definition Universe is the most recent GTA universe in the series.

So far it includes five games (including DLC's): This universe is the has the best visual quality of the three. Its timeline of events and setting varies greatly from the 3-D Universe. Liberty City in this universe is more detailed and much larger than Liberty City in the last universe. Los Santos is also larger and the environment around it is more vast.
 * Grand Theft Auto IV
 * GTA: The Lost and Damned
 * GTA: The Ballad of Gay Tony
 * Grand Theft Auto: Chinatown Wars
 * Grand Theft Auto V