Completion
In a Grand Theft Auto game, attaining 100% completion imvolves numerous tasks, though there are usually some things that are not required for 100% completion.
Below are explanations of what is required in each game to achieve 100% completion:
GTA 1
GTA London 1969
GTA London 1961
GTA 2
GTA III
GTA Vice City
GTA San Andreas
Template:100% Completion in GTA San Andreas
GTA Liberty City Stories
GTA Vice City Stories