Quantum Break Multimonitor (32:9, 48:9)

Modify the game to enable superwide and multimonitor support (3840x1080, 5760x1080 and more!)

Unpack the game exe

• Download the latest version of this tool[github.com]. You only need the main archive, not the source code.
  
• Unpack the archive with software like 7zip or PeaZip.
  
• Launch the tool through its .exe
  
• For the file to unpack, select \dx11\QuantumBreak.exe found in the main game folder.
  
• Click on Unpack File.
  
• If succeeded, remove or back up the original game exe, then rename the .unpacked file to QuantumBreak.exe
  
• Done! The game executable is ready for modification.

Enable and set your resolution

• Click on Download this file on this PCGW community page[community.pcgamingwiki.com].
  
• Unpack the archive and launch the tool.
  
• As before, target \dx11\QuantumBreak.exe inside the main game folder.
  
• Click on Start.
  
  
• Once the patching is done, open %LOCALAPPDATA%\QuantumBreak\renderer.ini in a text editor.
  
• Set the values of m_iResolutionX and m_iResolutionY to the desired width and height.
  
• Save the changes.
  
• Enjoy the game at your resolution!
  
  
  
  Remember that changing in-game settings will set the game back to one of its native resolutions and you will have to add the desired resolution to the config file again.

[joelhr12]

works at 3440×1440 but could not get 5120x1440 unfortunately

[Hydroculator]

I got this to work on a 5120x1440 monitor in 2025.
There's two important changes to this guide that I needed to make it work.

1. In the steamless app, check the "Keep Bind Section".
2. Don't try to run the plain executable. For some reason, this does not work. You need to have the exe with the original name, and run it through Steam. When I tried to run the exe manually, it would go black for a second then crash, no messages or warnings. But running through steam after updating the ini file worked perfectly.

Used Steamless v3.1.0.5

For reference, this is where I found the bit about the additional steps:
https://github.com/atom0s/Steamless/issues/105

[OneNot]

Latest comments are saying it's not working, so just leaving a comment here confirming that it worked for me. 3440x1440.

[Piano man]

Doesn't work... and seems I'm not the only one it hasn't worked for.

[Stupidsaurusrex]

Tried this for 5120x1440 on my G9 OLED, no dice. Gave an error about storage device and reverted back to 192x1080... Yes, I did remember the rename step... lol

[Fat White Lump]

Just wanted to confirm that this does still work. Thank you for the guide! Make sure you unpack your exe with the Steamless tool, the patcher will not work if you don't do that.

[Ferosnow95]

Followed the steps, but after running the Steamless unpack, the exe simply opens to a black window and closes without a error :(

[Meekay]

application load error 3:00000065432 didnt work for me

[NicSage]

Followed directions. Game opens then CTD right away, No errors or anything popping up.

[iranarmy]

nice