GTA 2 (1999) shipped one fictional metropolis - Anywhere City - in three districts. Last 2D GTA before the 3D revolution.

What it was

Three districts in a single city. Top-down camera. Gang reputation system. Fairly small in scope by post-2001 standards but a clear progression from GTA 1's three cities into a more concentrated single setting.

Influential more for the gang system than the map structure.