Critical patches to ensure the 2005 game runs on Windows 10 and newer.
Older physical disc versions of the game may have "StarForce" copy protection issues on modern Windows; the 2015 guide provides instructions on how to handle this.
The 2015 edition was a major milestone for the Silent Hunter III modding community, offering:
English
Chinese
Spanish
Portuguese
Russian
Japanese
French
German
Italian
Hindi
Korean
Indonesian
Bengali
Albanian
Bosnian
Dutch
Malayalam
Romanian