FMMLoader26 - A cross-platform Mod Loader for Football Manager

FMMLoader26 — Cross-Platform Mod Manager for Football Manager 2026
by Justin Levine (JALCO / notJalco)


Download: Latest Release (Windows • macOS • Linux)
Discord: Join the community for help
Wiki/Docs: GitHub Wiki

What is it?

FMMLoader26 is a simple, safe mod manager for FM26. Drag-and-drop mods, auto-detect your FM folder, apply or roll back with one click, and resolve conflicts automatically. Supports UI bundles, tactics, graphics, skins, and more.

Key Features

• Zero install (portable EXE on Windows / App bundle on macOS / binary on Linux)
  
• Drag & drop imports (.zip, .bundle, .fmf, or folders)
  
• Auto-detects Steam & Epic FM26 paths
  
• Type-aware install (UI/Tactics/Graphics → correct folders)
  
• Restore points before every Apply (easy rollback)
  
• Conflict Manager (shows winners by load order)
  
• Load Order control (last-write-wins)
  
• Detailed logs for troubleshooting
  
• Manifest support (dependencies, conflicts, metadata)
  

System Requirements

• Windows 10/11, macOS 10.14+, or Linux 64-bit
  
• ~100 MB free (plus space for mods)
  
• Football Manager 2026 installed (Steam or Epic)
  

Installation

Windows

• Download FMMLoader26.exe
• Double-click to run (portable, no installer)
  
• If SmartScreen warns → “More info” → “Run anyway”
  

macOS

• Download and unzip FMMLoader26.zip
  
• Drag FMMLoader26.app to Applications
  
• First launch: Control-click → Open (bypass Gatekeeper once)
  

Linux

• Download FMMLoader26-Linux.tar.gz from the latest release page
• Extract it anywhere (e.g. your home folder)
  
• Make it executable if needed:
  

chmod +x FMMLoader26

• Run it:
  

./FMMLoader26

• No Python setup or dependencies required — it’s a standalone binary build.
  

Tip: Create a desktop shortcut or add FMMLoader26 to your Applications menu for quick access.

First Run: Set Your FM Folder
Try Detect Target first. If needed, set manually. Common paths:

Windows (Steam)

C:\Program Files (x86)\Steam\steamapps\common\Football Manager 26\fm_Data\StreamingAssets\aa\StandaloneWindows64

Windows (Epic)

C:\Program Files\Epic Games\Football Manager 26\data\StreamingAssets\aa\StandaloneWindows64

macOS (Steam)

~/Library/Application Support/Steam/steamapps/common/Football Manager 26/fm.app/Contents/Resources/Data/StreamingAssets/aa/StandaloneOSX

macOS (Epic)

~/Library/Application Support/Epic/Football Manager 26/fm_Data/StreamingAssets/aa/StandaloneOSXUniversal

Linux (Steam Proton prefix)

~/.steam/steam/steamapps/common/Football Manager 26/data/StreamingAssets/aa/StandaloneLinux64

How to Use

• 1) Import: Drag a .zip/folder/.bundle/.fmf into the app (or use “Import Mod…”). If no manifest is found, FMMLoader prompts and creates one.
  
• 2) Enable: Select a mod → “Enable (mark)”.
  
• 3) Order: Move Up/Down if multiple mods touch the same files.
  
• 4) Apply: Click Apply to install mods (FM must be closed).
  
• 5) Rollback: Use “Rollback…” to restore from backups (keeps last 10).
  

Supported Mod Types & Formats

• UI / Bundle → Game data folder (UI tweaks, stadium/match UI)
  
• Tactics → User tactics folder (4-4-2, gegenpress, KNAP sets)
  
• Graphics → User graphics folder (kits, logos, faces)
  
• Skins → User skins folder (custom themes)
  
• Misc → User folder (other mods)
  

Formats: .zip (auto-extract), .bundle, .fmf, or folders (with or without manifest)

Troubleshooting

• “No valid FM26 target set” → Detect Target or manually select the Standalone folder.
  
• Mods not appearing → You must click Apply and restart FM26.
  
• “FM is running” warning → Close the game completely (Task Manager / Activity Monitor).
  
• macOS won’t launch → Control-click the app → Open (first time only).
  
• Linux permissions → Use chmod +x FMMLoader26 if it won’t start.
  

For Modders (manifest.json)
Use a manifest to define metadata, dependencies, and install paths.

{
  "name": "My Awesome Mod",
  "version": "1.0.0",
  "type": "ui",
  "author": "YourName",
  "homepage": "https://yoursite.com",
  "description": "A brief description of what your mod does",
  "files": [
    { "source": "ui-stadium.bundle", "target_subpath": "ui-stadium.bundle" }
  ],
  "compatibility": { "fm_version": "26.0.0" },
  "dependencies": [],
  "conflicts": [],
  "license": "CC BY-NC-SA 4.0"
}

Full guide: Modders Guide (GitHub)

License & Disclaimer

Licensed under CC BY-NC-SA 4.0 (non-commercial share-alike with attribution).
Not affiliated with Sports Interactive or SEGA.