So that just happened. I have about one crash per hour, so far they were a minor nuisance that I couldn't seem to get rid of with the repair.exe. This last one, however, felt a bit different and after restarting my PC (my crashes always make my system inoperable) I found that the game's .exe was gone. Poof, just like that, blackscreen, no reaction from anything, file gone.

Don't see any pattern to when it happens. This time it was when I had just entered a busy cave with my corpse and a lot of enemies and bosses near the entrance.

I imported the game folder and used Galaxy to reacquire the .exe. Gonna try some more fixes posted here in the forum (play without GOG Galaxy interplay etc.). Hope it gets better.

System:
Win 10 Home 64bit (latest update installed, crashes occured prior to that as well)
Intel Core i7 4790k (4.0 GHz)
nVidia GTX 970 (latest drivers)
8 GB of RAM
Game is on a 120 GB SSD

UPDATE - SOLVED
By following Huppi's post in another thread, I no longer experience any crashes.
-----
Navigate to the Grim Dawn installation folder and remove ( move the files into an empty folder ) the following files:

d3d9.dll
dinput8.dll
dxgi.dll
xinput1_3.dll
GogGalaxyHooks.dll

Don't use the Gog Galaxy client to start / play the game, you'll be able to play singleplayer without these crashes. Named files were responsible for the crashes in Witcher 3 btw. :-)
-----




I have similar specs except I have 16GB ram and I'm on Win7 x64.

I can play for a random amount of time (usually less than 20 minutes) and then the screen goes black,
my monitor goes into power save mode but I can still hear the audio from the game.

Alt-Tab, CTRL-Alt-Del don't do anything. I have to hard reboot my PC which then comes up with the "Start Windows Normally" option which occurs after not being shut down properly.
I have updated all of my drivers, monitored my GPU temp while playing. It happens in both fullscreen and windowed.

It also happens with both the Steam version and the Gog version (I love the game enough to have bought it twice).

It's frustrating that I can play it on my laptop for hours but not my decked-out desktop.

NOTE: I'm on 10.0.0.6. The game used to work as I have about 10 characters which I created and played months ago.

Seems like Windows 10 ships with its own DirectX 9 library set, so by deleting DLLs which came with the game, you are forcing the game to use Win10 libraries instead of "stock" DirectX 9 variants.

Funny how it worked fine in all Windowses between XP and 8.1, and now creates a problem. What a mess of an operating system.