Posted August 09, 2022
sarahcat1: Another thing that I sorta stumbled upon: if you do the following, you should be able to play it via GOG Galaxy instead of having to go to the Program Files (x86) folder:
1. Go to your Fallout 3 page in your GOG Galaxy 2.0 library (not sure how it is in GOG Galaxy 1.0, so just wanted to be clear).
2. Click on the Configure icon—the one with two dots, each connected to a horizontal line.
3. Go to Manage Installation > Configure, and checkmark "Custom executables / arguments" and make a new argument.
4. Under File 4, select C:/.../Fallout3.exe.
5. Click on "Default executable".
Now GOG Galaxy should open up Fallout3.exe instead of FalloutLauncher.exe when you click "Play".
Not sure if this will help anyone; all I know is that it made it work for me, in addition to the solutions stated before this comment.
Good luck, everyone!
SlutForBrains: This is it. When all else failed, simply opening it from the Fallout3.exe rather than the launcher exe got me past the instant crash and I was able to play. I tried every fix under the sun, but this is the one that actually got me into the game. 1. Go to your Fallout 3 page in your GOG Galaxy 2.0 library (not sure how it is in GOG Galaxy 1.0, so just wanted to be clear).
2. Click on the Configure icon—the one with two dots, each connected to a horizontal line.
3. Go to Manage Installation > Configure, and checkmark "Custom executables / arguments" and make a new argument.
4. Under File 4, select C:/.../Fallout3.exe.
5. Click on "Default executable".
Now GOG Galaxy should open up Fallout3.exe instead of FalloutLauncher.exe when you click "Play".
Not sure if this will help anyone; all I know is that it made it work for me, in addition to the solutions stated before this comment.
Good luck, everyone!