The actual legal version costs $20-$30 on Steam or Rockstar Launcher. However, you can reduce its installed size:
If you have limited storage or a low-end PC, you can use legitimate methods to improve performance rather than risking a fake download: Grand Theft Auto IV system requirements - Can You RUN It gta 4 highly compressed 100mb for pc
At first glance, it sounds like magic. Rockstar Games’ magnum opus of 2008—a 14GB open-world epic about Niko Bellic’s brutal pursuit of the “American Dream”—shrunk down to the size of a three-minute MP3 file. To the casual user with a slow connection and a low-spec PC, this isn’t just appealing; it feels like justice. The actual legal version costs $20-$30 on Steam