It use to work, stuck at black screen. The x86 version will load no problem, the x64 version will only load with Galaxy

"Update" Solution

Copy the Grim Dawn\x64 files and copy them to the main Grim Dawn folder and replace the files, you can make a shortcut from the Grim Dawn\x64.exe but you will need to change the shortcut (start in) path from ":\Grim Dawn\x64" to ":\Grim Dawn\ do not forgot the drive path letter

"Update"

I notice a custom Grim Dawn icon that was not very visible that loads the game in x64. This might be due to Galaxy Grim Dawn directory path shortcut for the default/custom executable

THANK YOU VERY MUCH. This method WORKS.

As i copied all the files from the /x64/ folder to the Grim Dawn main game folder. The game started without having a black-screen. Yes, i have downloaded and installed the game OUTSIDE of the Galaxy 2.0 client.

This forum thread need to be stickied so everyone can read this.