The specific string you provided follows the naming convention used by the "warez" or digital preservation scene: : Indicates the original base version of the game.
: Known for providing DRM-free versions of classic games that are optimized for modern Windows versions. download-sinking-island-v1-0-internal-fckdrm
If you are looking for a safe, modern, and legal way to experience the game without the risks associated with scene releases (like malware or compatibility issues), you can find it on major digital storefronts: The specific string you provided follows the naming