Hi Magic,
With S3D, open my scene.sim, and in Light-MoonLight node raise a little bit the Attenuation value (it’s set on 0,1 but you can raise up to 0,5)
It should do the trick
If not enough, also raise your monitor gamma settings!
Nights are perfectly adjusted in my opinion & on my monitor rendering.
Very difficult to set values, depending on each one’s monitor!...
Overcast nights without rain, you should barely see the horizon line, not to say you shouldn’t see it with light fog! Corresponding to really dark nights in real. Ships could be only seen quite close. Very difficult to attack...
Overcast nights with rain, you shouldn’t see anything! No attacks possible...
Partially clouded and clear weather you should see the horizon line, but not as clear as no clouds at all of course.
In any way the sky should be other rendering than black! Except in Baltic area and Artic where the nights skies are more dark blue than black (on my monitor again)
Hope that helps!