I've tried lowering the gamma or stuff in game. But if I lower that , it will make day-time also really dark , wich I don't like. So I was wondering if it's possible to make only nights darker?

Man I would also like darker nights and dark areas darker in general, I mean what is the point of torches, lanterns, and light spells if visibility is never hindered? Lol @ Beth for their crazy antics...

I agree... There's always some kind of light at night it's like your character has nightvision or something... In real life take a look outside in the middle of the night when there's no lights around... I can tell you, you can't see ANYTHING sure there's moon and stars but it's still very dark, so in Skyrim if there's no lights around you shouldn't be able to see anything and you would have to use lantern or something.

And darker dungeons would be cool too, I really like some of the great lighting effects the dungeons have, but I kinda wish there was a few dungeons that were actually darker then outside during the day

Their nights have always been "Days with night-time sound effects" since Morrowind

I can see the level of light for vanilla Skyrim nights on a clear night when those giant moons are full, but yeah, when they aren't full or it's cloudy it should be a lot darker. Problem is, the other inhabitants of the game wouldn't know it was darker if it was, so you would be the only one who couldn't see in the dark.