Worldwide sales hit $500 million , selling roughly 6 million units.
It was built on the Rockstar Advanced Game Engine, moving away from the Renderware engine used in previous titles. Articles on the topic: "gta 4"
GTA IV marked the beginning of Rockstar’s "HD era," transitioning to powerful seventh-generation consoles: Worldwide sales hit $500 million , selling roughly
The game famously integrated NaturalMotion’s Euphoria engine , which synthesized character animations in real-time. This allowed NPCs to react dynamically to impacts, such as bracing themselves when hit by cars. Worldwide sales hit $500 million