Rockstar games later went on to use the game engine and flight mechanics as well as the swimming and other parts of his game to improve what most of you would refer to as GTA:SA and GTA:4, one could be labored to suggest that this game allowed and was the father of said games. In the gaming industry it happens often that one game either spawns or helps improve the industry standards and this game thou over looked did more for the gaming world then most figure or see.