Compressing 6,000MB (6GB) down to 13MB would require a compression ratio of nearly 460:1. In the gaming world, this is effectively impossible without removing every single texture, sound file, and 3D model, which would make the game unplayable.
is a classic football simulation title. The standard PC installation requires roughly of storage space. The "13 MB" Compression Claim Pes 2009 Highly Compressed Only 13 Mb