To run this version on PC, the following specs were generally required: : Windows 7/8/10/11 (64-bit)
: New immersive effects were added, such as periscope lenses being wetted by water, denser rain that splashes on surfaces, and marine snow under the sea. UBOAT Free Download (B131 Hotfix 1)
: This version required players to start a new save file for full compatibility, as major engine and gameplay overhauls often broke older saves. To run this version on PC, the following
Hotfix 1 was primarily aimed at stabilizing the new features and fixing issues introduced in the initial B131 release. To run this version on PC