FM26 Ultrawide Fix

A BepInEx plugin that adds proper ultrawide support to Football Manager 2026. The game ships with no ultrawide support and locks itself to a 16:9 aspect ratio and leaves empty space on 21:9 and 32:9 displays.

This mod patches the game's UI scaling pipeline at runtime to fill the full width of your monitor without stretching or distorting anything.

There are still a few quirks with the way the mod scales UI elements, and is by no means perfect. Some main menu elements are a bit cropped, some elements feel offset... This mod has been tested on a UWQHD monitor, so feel free to mention any and all issues with other resolutions.

Requirements

• Football Manager 2026
• BepInEx 6 #738 at a minimum. This is mandatory, BepInEx LTS versions such as BepInEx 5 are not supported.

Installation

Via Thunderstore (recommended)

Install using the Thunderstore Mod Manager or r2modman. Search for FM26 Ultrawide Fix and install.

Manual installation

1. Install BepInEx 6 Bleeding Edge for Football Manager 26. Follow the instructions on the BepInEx Thunderstore page.
2. Launch FM26 once with BepInEx installed and then close it.
3. Download FM26UltrawideFix.dll from the Releases page.
4. Copy the DLL into Football Manager 26/BepInEx/plugins/.
5. Launch FM26. The mod will activate immediately.

The default install path for the game on Steam is:

Windows :

C:\Program Files (x86)\Steam\steamapps\common\Football Manager 26\

Linux :

~/.local/share/Steam/steamapps/common/Football Manager 26/

Building from source

You need the .NET 6 SDK and a copy of FM26 with BepInEx already set up (so the interop assemblies exist).

git clone https://github.com/your-username/fm26ultrawidefix
cd fm26ultrawidefix
dotnet build -c Release

The build will look for FM26 in the default Steam library path. If yours is elsewhere, override it:

dotnet build -c Release -p:GameDir="/path/to/Football Manager 26"

The output DLL will be at bin/Release/net6.0/FM26UltrawideFix.dll.

Bugs and issues

Feel free to report bugs and issues in the Issues section here on github. You can also contact me through Discord (Wobs OR with userId : 103905189341167616).

Contributing

Bug reports and pull requests are welcome. A few things worth knowing before diving in:

The UI system is not standard Unity. FM26 uses Unity UI Toolkit (PanelSettings, VisualElement, UIDocument), not uGUI/Canvas. Fixes that work for other Unity games via CanvasScaler don't apply here. If you're researching a layout issue, the DiagnosticDump config option will log the full VisualElement hierarchy on each scene load, which is the most useful starting point.

The game compiles to native code, so many things that work in Mono builds behave differently here. resolvedStyle properties (interface dispatch) can throw silently in IL2CPP; ve.layout (a plain Rect struct) is reliable. RuntimeHelpers.GetHashCode does not give stable object identity for IL2CPP proxy objects, use ve.Pointer.ToInt64() as a dictionary key instead.

The fix runs on a polling loop. FM26 resets various style properties on scene transitions. The mod re-applies its changes every 30 frames rather than relying on one-shot hooks that the game can undo. I have not profiled the performance impact, but it feels ok for now.

If you find a screen that still has dead space or incorrect layout, enabling LogExpansions and LogSkipped in the config and attaching the output to a bug report is the fastest way to help narrow it down.

This project is licensed under the MIT License.