In gaming, a "repack" is a version of a game that has been re-packaged by a third party—often not the original developers. Repacks are typically heavily compressed to make the file size smaller, and they often bypass the original copy protection or DRM.
A repack is a version of a PC game that has been heavily compressed to reduce the overall file size for downloading. Enthusiasts or community archivers typically strip out non-essential files (like multiple language audio tracks) or use advanced compression algorithms to shrink a 5GB game down to a fraction of its size. Why Do Players Search for Older Repacks? project zomboid build 38 repack