Maybe you don't know, we always upload files from SCENE in their original form. In this case it is TENOKE, and this group also works differently from other groups, they do not compress while creating the .iso file, which is why the original file (.iso) is so large.
For those who are wondering about the size, yes, there are repacks of this game out there that are only ~600 MBs in size. However, once installed, the game takes up 13.6 GBs of space.
As mentioned below in other comments, IGG is obviously not a repacking website and posts Scene files as is, hence the 13.6 GBs in downloads
You can search google to know what a scene is.
As mentioned below in other comments, IGG is obviously not a repacking website and posts Scene files as is, hence the 13.6 GBs in downloads
Yt : https://youtu.be/UwemzDe2XEk