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FUSE

FUSE is a Unity Mod Manager modding layer for Railroader. It loads FUSE data packages — route extensions, asset packs, audio packs, track graph changes, world scenery, operations, and progression data — and provides drop-in compatibility for legacy Railloader, Strange Customs, ConfusingSupplements, For Your Convenience, and Alina's Map Mod packages.

New here? Start with Getting Started.

Not sure whether to install, convert, or edit a mod? Use Install, Convert, Or Author.

Coming from Railloader or another legacy stack? Read Migrating From Legacy Mods before installing anything.

Players

• Getting Started — install, verify, update, uninstall
• Install, Convert, Or Author — choose the correct tool
• FAQ — legacy mods, multiplayer, saves, performance
• Settings — every setting and its default
• Performance Testing — reproducible load, menu, stutter, editor, and Toolshed acceptance
• Console Commands — every /fuse.* command
• Troubleshooting — symptom to diagnostic
• Known Issues — current limitations
• Installer — installing packages from zips

Package Authors

• Converter — converting legacy mods
• Package Author Guide — the authoring contract
• Authoring Recipes — common map, industry, loader, and JSON tasks
• External Editor — the standalone desktop editor
• Map Authoring Coverage — base-game subsystem crosswalk and live acceptance boundary
• JSON Schema Reference — the data contract

Offline manuals

• FUSE User Manual (PDF)
• FUSE Package Author Guide (PDF)

Contributors

Contributor documentation lives in the repository:

• Contributing
• Architecture
• Changelog
• Security Policy

Project

• Repository
• Releases
• Issues
• Licensed under AGPL-3.0

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This wiki is generated from docs/ in the repository. Edits made here are overwritten on the next sync — change the repo instead.