Hello there!
I just wanted to post my ReShade preset here.
My main goal was to make the game look a little less blue and overall less saturated and also darker, in other words more Grim ;)
It makes most caves really dark but light sources still illuminate their surroundings. I suggest playing with highest lighting settings for the best result.
On Outisde areas the game gets a a little more Grim looking aswell by desaturating most colors and adjusting contrast.
Also Nights are much darker too.

You may not like the "blooming" effect in very bright areas like Deserts. That is caused by the "Ambient Light" effect. So if you dislike it you can turn it off by simply unticking that effect in the reshade options.
Other than that if you prefer the game to be a little less dark overall you can simply deactivate "levels" in the reshade options.

Sorry for not showing pictures of brighter areas btw. They have a bigger file size and for some reason Nexusmods now doesn't even let me upload images smaller than 8mb which is weird :C


How to install:

1.
Download Reshade from https://reshade.me and install to your Grim Dawn Directory :

32bit client: SteamLibrary\steamapps\common\Grim Dawn\
64 bit client: SteamLibrary\steamapps\common\Grim Dawn\x64\
Grim Dawn uses Direct X11 by default so choose that options unless you manualy force DX9

2.
Copy all contents from the downloaded Archive in the same directory where you installed reshade. (See above) Overwrite all files.

3.
Open the Reshade settings ingame by pressing the "Home" button or "Pos1" in german
Select "All Lights Matter Reshade" at the top and click "Select"