Sandustry Mod Loader Guide for Early Access
Learn why Steam Early Access does not need FluxLoader, how the current Mods branch works, and why old Mac mod loader steps are unsafe.
You do not need a third-party FluxLoader to use current Steam Early Access Workshop content. The supported public route is Sandustry Workshop plus Steam’s Mods branch.
Do You Need a Third-Party Mod Loader?
For current Steam content, no. Subscribe in the Workshop and use the Mods branch described by the official pinned FAQ.
Check the Workshop item’s compatibility notes and keep a backup of saves before loading a different build. If Steam does not apply a branch change immediately, follow the current client prompt rather than relying on an old restart rule.
What Is FluxLoader?
FluxLoader is a community loader created for the Sandustry Demo. Release 2.5.5 was published on April 12, 2026, four months before Early Access launched on August 13.
Its README creates logs, configuration, and a mods folder and supports a configurable game path. However, its default paths and source still refer to Sandustry Demo. The date and code context mean version 2.5.5 must not be assumed to support Early Access.
Why the Old Mac Tutorial Should Not Be Followed
The old official-Wiki Mac Modloader section warns that the loader may be out of date. Its linked Mac ZIP returned 404 when checked on August 16, 2026.
The tutorial also asks players to install Node.js 18 and run commands including npm i and sudo npm install electron. Node.js 18 is end-of-life. Running outdated package commands or a missing third-party bundle is not a safe default installation path.
Safe Mod Loader Checklist
- Prefer the current official Steam FAQ and Workshop.
- Verify that instructions name Early Access, not Demo.
- Confirm the loader version, game version, operating system, and store.
- Use original repositories only.
- Inspect scripts before running them, especially with administrator privileges.
- Back up saves and configuration.
For a full current workflow, continue to the Sandustry Mods guide.
Sources: official FAQ, FluxLoader 2.5.5, FluxLoader repository, old Wiki tutorial, and Node.js releases.