When I play in another resolution than my desktop resolution, the brightness is way too low. Unfortunatelly, there is no brightness/gamma adjustment in the graphics settings. For now I noticed, that when I switch the resolution in my destop to the preferred size during game, it's okay.
It's a bit tedious, changing resolution every time I play, but it would be more tedious to manually change the brightness of the screen every time.
But for the future I hope this is going to be fixed. On the steam forums, there is already someone else experiencing the same problem...

Anyway enjoy the game...

You may want to mention your 4k monitor and that you scale it down to 2500x1440 to play, which causes the darker picture?

Does the monitor have any brightness adjustments?

Hey disi, alles klar? ^^

So concerning the problem I encountered: when I set my desktop resolution to the resolution I want to use ingame, I can avoid the brightness issue. It's not the best solution, but a solution I can live with.

My screen does not use another setup concerning brightness or in other words, I cannot go up as far with the brightness regulator as I would need to see something.