The map succeeds because it feels lived-in. The pedestrians (NPCs) have routines that interact with the geography. You see people smoking on stoops in Broker, businessmen hailing cabs in Algonquin, and teenagers hanging out on the boardwalks of Firefly Island.

The heart of Liberty City, featuring landmarks like Star Junction (Times Square), Middle Park (Central Park), and the skyscraper-heavy Financial District .

The boroughs are distinct entities that behave differently:

The weather system makes the map feel dynamic. When the fog rolls in, the skyline disappears. When it rains, the streets flood with reflections of neon lights, making the city look like a beautiful oil painting one moment and a drowning misery the next. The lighting engine was revolutionary for its time, giving the map a tangible weight that few games have replicated since.

If GTA: San Andreas is a theme park and GTA V is a postcard, GTA IV is a concrete jungle.