ah, my bad then... didnt thougth about that.While a rar, zip, what-have-you file is strictly reducing the file size for transit/storage, that is not what is frequently meant by "the compressed version" on this forum. Many of the games here contain quite a few images and videos. These images and videos are the bulk of the total size of the game on disk.
Several people on this forum download various games; extract the game's contents; change the quality and color count of the imagery files; re-package the game; and make that available as "the compressed version." So it is a modified game version. Any time there is a middle-man making changes it is always possible for new errors to slip in.
The compressed version zip file and the original zip file, once unzipped, DO NOT take up the same disk space. (That said, the OP does not currently list a compressed version for this game. At least I don't see it.)