The file you've mentioned, "God of War Ascension - Gnarly Repacks -.7z.009", seems to be a part of a larger archive, possibly split into multiple files. The ".7z" extension indicates it's a 7-Zip archive, and the ".009" suggests it's a specific part of a multi-part archive.

Ensure all files have the exact same prefix. If one file is named differently (e.g., it has a (1) at the end), the extraction will break.

Repackaging games involves re-compressing and re-distributing game files, often to reduce file size or to bypass copy protection measures. This process is usually done by third-party groups or individuals not affiliated with the game's developers or publishers. Repackaged games are often shared or downloaded through peer-to-peer networks.