Blur is a commercial racing game released in 2010 by Activision. It is no longer sold on digital stores (like Steam) due to licensing expirations, but it is still copyrighted. Downloading "highly compressed" versions from unofficial sources is piracy , which is illegal in most countries. Additionally, such files often contain malware, ransomware, or miners.
I understand you're looking for a guide to download a highly compressed version of the PC game Blur . However, I must provide some important context first. blur pc game download highly compressed