ModsFinder

Shuttle

by Dwarslooper

Shuttle is a Fabric library for client-side mods that want to support extension mods built on top of them.

FabricClient-side onlyAll rights reserved1.0 – 1.21.8

What it does

Shuttle gives a mod author a way to register new content internally and let other mods extend it. Developers who want to extend their own mod with additional mods can use it as a base. Only the client needs it, so servers run without it. The license is All rights reserved, and the code is not open source, though public links exist for the source code and the issue tracker.

Files target 1.0 – 1.21.8 across 95 release versions, all for Fabric. The latest Fabric file is 1.0.0 for 1.21.8, published 2025-08-29 on the beta channel.

Key features

  1. Extension support

    Lets other mods attach extensions to Shuttle, so a mod can be expanded without changes to its core code.

  2. Internal registration

    Provides a way for a mod to register new entries internally and tweak them from its own codebase.

  3. Lightweight design

    Built as a small addon library focused on extension hooks rather than gameplay content.

Compatibility

Latest build for each game version and loader.

No stable releases
Every published file is a beta or alpha build.
1.21.x9 of 9 versions with builds
1.21.81.0.0
1.21.71.0.0
1.21.61.0.0
1.21.51.0.0
1.21.41.0.0
1.21.31.0.0
1.21.21.0.0
1.21.11.0.0
1.211.0.0
1.20.x7 of 7 versions with builds
1.20.61.0.0
1.20.51.0.0
1.20.41.0.0
1.20.31.0.0
1.20.21.0.0
1.20.11.0.0
1.201.0.0
1.19.x5 of 5 versions with builds
1.18.x3 of 3 versions with builds
1.17.x2 of 2 versions with builds
1.16.x6 of 6 versions with builds
1.15.x3 of 3 versions with builds
1.14.x5 of 5 versions with builds
1.13.x3 of 3 versions with builds
1.12.x3 of 3 versions with builds
1.11.x2 of 2 versions with builds
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

47 older game versions (1.0 – 1.11) not shown. All files on Modrinth

Questions

Does Shuttle need to be installed on servers?

No. Shuttle is client-side only, so only the client needs it and servers run without it.

Which loader does Shuttle use?

Shuttle is published for Fabric only, with files covering 1.0 – 1.21.8.

In the catalog

Shuttle is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 17,695 mods support Minecraft 1.21.8.

Optimization mods3,545Fabric modsMods for 1.21.817,695

More from Dwarslooper

All projects
Cactus Mod1.20.1 – 26.3AFix1.20.4

Similar mods

Sodium1.16.3 – 26.3Iris Shaders1.16.5 – 26.3Entity Cullingb1.7.3 – 26.3FerriteCore1.16.5 – 26.3ImmediatelyFast1.18.2 – 26.3Sodium Extra1.16.2 – 26.3

What the author says

For now, there isn't really documentation on it - I'm maintaining this in my free time and will create some docs when I have time for it.
Dwarslooper, on the Modrinth page

Official listing

Owner
Dwarslooper
Published
2025-08-28
Updated on Modrinth
2025-08-29
Facts verified
2026-10-15

Tags

LibraryOptimization
Open on ModrinthCompare