Repackers can often shrink a 20GB game down to 10GB–15GB by using advanced algorithms and removing optional language files.
Downloading a 13MB version of for PC is highly inadvisable, as it is almost certainly a fake or malicious file . The legitimate download size for GTA IV: The Complete Edition is approximately 19.68 GB , requiring roughly 22.40 GB of actual disk space. Why "13MB" Downloads are Dangerous Gta Iv Highly Compressed Pc Game Only 13mb 15