Slimefun4 continued for modern Paper servers, preserving classic gameplay, machines, items, and addon support.
๐งชโก SLIMEFUN LEGACY โก๐งช
๐ The Classic Slimefun Experience. Rebuilt for Modern Minecraft!
๐ญ BUILD BIGGER โข โก POWER EVERYTHING โข ๐ฎ MASTER MAGIC โข ๐ AUTOMATE YOUR WORLD
๐ TURN YOUR MINECRAFT SERVER INTO A TECHNOLOGICAL WONDERLAND!
Ever wanted the excitement of a massive Minecraft technology modpack without making your players install dozens of mods?
Welcome to Slimefun Legacy! ๐
Slimefun Legacy is an independently maintained continuation of the legendary Slimefun 4, bringing hundreds of custom items, incredible machines, powerful energy systems, automation, magic, and countless possibilities to modern Minecraft servers!
Transform an ordinary survival world into an industrial empire, an automated factory, or a laboratory of magical discoveries.
โจ All through a server-side plugin โ no client-side mods required!
Whether you're a newcomer discovering your first magical gadget or an experienced engineer constructing enormous automated factories, Slimefun Legacy brings something for everyone.
โ๏ธ EXPLORE A WORLD OF POSSIBILITIES!
๐ญ Advanced Machines & Automation
Turn raw resources into technological masterpieces!
- ๐ง Build powerful industrial machines and processing systems
- โ๏ธ Automate crafting, smelting, and resource production
- ๐ฆ Transport materials through Cargo networks
- ๐๏ธ Design complex factories with interconnected equipment
- ๐ Expand your production with compatible automation addons
โก Electricity & Power Generation
Your machines need energy. How will you generate it?
- ๐ Produce, store, and distribute electricity
- โ๏ธ Harness different energy sources
- โข๏ธ Experiment with advanced reactors
- ๐ Build interconnected electrical systems
- ๐ก Engineer increasingly sophisticated power infrastructure
๐ฎ Magic, Gadgets & Adventure
Not everything in Slimefun is powered by electricity!
- โจ Discover magical equipment and mysterious items
- ๐ช Experiment with special tools and useful gadgets
- ๐ก๏ธ Craft equipment with unique abilities
- ๐ Explore backpacks and portable storage
- ๐ Unlock new technologies through Slimefun research
๐ Powerful Slimefun Guide
Your personal encyclopedia of science and magic!
- ๐ Search for items and recipes
- ๐ Browse machines, materials, and technologies
- โญ Bookmark useful discoveries
- ๐ Explore crafting recipes and item uses
- ๐งฐ Enjoy additional guide features through compatible addons such as JustEnoughGuide
From your first basic machine to an enormous industrial complex, there's always something new to discover!
๐ A MASSIVE ADDON ECOSYSTEM!
๐ One Plugin. Endless Expansion.
Slimefun Legacy is more than just a standalone plugin.
It maintains compatibility with the established Slimefun 4 ecosystem while supporting a growing collection of updated Legacy addons.
Expand your experience with projects such as:
| Addon | Experience |
|---|---|
| โก Networks | Advanced item networks and storage automation |
| ๐ญ InfinityExpansion2 | Industrial expansion, resource processing, and technology |
| ๐ฎ DynaTech | Additional machines and engineering |
| ๐ ๏ธ FluffyMachines | Useful machines, tools, and equipment |
| ๐ Supreme | Advanced materials, equipment, and processing |
| ๐ JustEnoughGuide | Enhanced recipe browsing and guide features |
| ๐งฌ GeneticChickenEngineering | Additional resource and production mechanics |
| ๐ LuckyBlocks | Randomized rewards and surprises |
| ๐ Galactifun | Space-themed technology and exploration |
๐ฆ An optional curated addon bundle is available through Slimefun Legacy's GitHub releases!
The maintained release ecosystem includes a coordinated collection of 45 addon JARs, with continuing compatibility improvements.
Addons are installed separately. Individual addon requirements and supported versions may vary.
๐ Browse the Slimefun Legacy Addon Wiki
๐ก๏ธ BUILT FOR MODERN SERVERS
โค๏ธ Preserving the Past. Protecting the Future.
Slimefun Legacy isn't just about adding features. It's about maintaining a reliable experience for players and server owners.
๐ง Modern Minecraft Compatibility
Carefully maintained for modern Paper servers with updated platform APIs and compatibility testing.
๐พ Existing World Preservation
Designed to retain established Slimefun items, machines, saved data, and addon compatibility wherever practical.
๐ฉบ Slimefun Doctor
Built-in administrative tools help identify legacy items, diagnose addon compatibility issues, inspect stored data, and plan safe recovery operations.
โก Performance & Stability
Improved machine lifecycle protection, ticker safeguards, Cargo optimizations, and runtime diagnostics help administrators investigate and reduce server performance problems.
๐ English-First Experience
English menus, names, lore, and messages without requiring a separate translation plugin.
๐ Continued Development
Ongoing bug fixes, compatibility improvements, addon maintenance, and testing keep classic Slimefun alive on newer Minecraft versions.
๐ฉบ MEET SLIMEFUN DOCTOR!
๐ Diagnose. Repair. Recover.
Running an established Slimefun server?
Slimefun Legacy includes a dedicated administrative diagnostic and recovery system!
Useful commands include:
/sf doctor statusโ Review Slimefun health and persistence status/sf doctor scanโ Scan for recoverable item issues/sf doctor compatibilityโ Investigate addon compatibility/sf doctor dependenciesโ Identify missing dependencies/sf doctor runtimeโ Inspect runtime safeguards/sf versionsโ View installed addons and compatibility information
Recovery tools favor dry runs, backups, and explicit confirmation instead of dangerous automatic data rewrites.
Because protecting your players' hard-earned items matters! ๐
๐ฅ๏ธ SERVER COMPATIBILITY
| Platform | Support |
|---|---|
| ๐ข Paper 26.3 | Primary development and validation target |
| ๐ข Paper/Purpur 26.2 | Supported compatibility line |
| ๐ข Paper/Purpur 1.21.11 | Supported compatibility line |
| ๐ฃ Purpur 26.3 | Experimental validation |
| ๐งช Folia | Experimental, with limitations |
| โ Spigot / CraftBukkit | Unsupported |
| โ Forge / Fabric / NeoForge | Not applicable โ server plugin |
โ Java: Java 25 is used for modern 26.2/26.3 servers. Minecraft 1.21.11 retains a Java 21 minimum.
๐ฎ Players: A normal Minecraft Java client is all that's needed. No client-side mods!
Always check the latest release notes for exact version and platform compatibility.
๐จ OPTIONAL RESOURCE PACK SUPPORT
Want custom textures for your Slimefun experience?
Slimefun Legacy supports an optional resource-pack workflow with modern item-model compatibility.
- ๐จ Custom item visuals
- โ๏ธ Configurable resource-pack delivery
- ๐ฆ Support for externally managed or combined packs
- ๐งฉ Designed to coexist with setups using ItemsAdder or other resource-pack managers
- ๐ Disabled by default, giving server owners control
The resource pack is optional. Slimefun Legacy works without forcing players to install it!
๐ INSTALLATION โ LET'S GET SLIMY!
- ๐พ Back up your server and existing Slimefun data.
- ๐ฅ Download the latest compatible Slimefun Legacy release.
- ๐ Place the plugin JAR into your server's
pluginsfolder. - ๐ Remove the previous Slimefun core JAR to avoid duplicate installations.
- ๐ Start your server normally.
- ๐ Open your Slimefun Guide and begin exploring!
For existing installations, review the startup log and run /sf doctor status and /sf doctor compatibility before reopening your server to players.
โ ๏ธ Never use /reload to install or update Slimefun. Always perform a complete server restart.
๐ WHY SLIMEFUN LEGACY?
Because classic Slimefun deserves to live on!
Minecraft continues to evolve, and servers shouldn't have to abandon years of Slimefun creations, research, machines, and memories simply because the game has changed.
Our goals are simple:
๐ก๏ธ Preserve the classic Slimefun experience.
โ๏ธ Modernize compatibility with newer Minecraft server platforms.
๐ Improve performance, diagnostics, and maintainability.
๐ Support the amazing addon ecosystem.
๐ Keep Slimefun alive for the community!
๐ LINKS & COMMUNITY
๐ Source Code & Development
https://github.com/wickidcow/Slimefun-Legacy
๐ฆ GitHub Releases & Addon Bundles
https://github.com/wickidcow/Slimefun-Legacy/releases
๐ Wiki & Documentation
https://github.com/wickidcow/Slimefun-Legacy/wiki
๐ Legacy Addon Collection
https://github.com/wickidcow/Slimefun-Legacy/wiki/Addons
๐ Bug Reports & Feature Requests
https://github.com/wickidcow/Slimefun-Legacy/issues
๐ฎ See Slimefun Legacy in Action
AlbionMC.com โ The Minecraft server that helped inspire and drive this maintained project.
๐งช THE LEGACY CONTINUES!
From the smallest electric machine to the largest automated industrial empire, Slimefun Legacy brings technology, magic, creativity, and adventure together in one incredible Minecraft experience.
โก Power your machines.
๐ญ Build your factories.
๐ฎ Discover the magic.
๐ Transform your world.
๐ SLIMEFUN LEGACY โ KEEP THE MAGIC ALIVE! ๐
Slimefun Legacy is an independent, community-maintained continuation of Slimefun 4. It is not an official release of the original Slimefun project, Slimefun United, or the SlimefunGuguProject. Not affiliated with Mojang or Microsoft.
Sponsors
Support Slimefun Legacy
Slimefun Legacy is maintained as a community project to preserve, modernize, and improve the classic Slimefun experience for current Minecraft servers.
If you enjoy the project and want to support continued development, testing, compatibility work, and addon maintenance, sponsorships are always appreciated.
Every bit of support helps keep Slimefun Legacy moving forward. ๐
Pinned Versions
- R1.21.11โ26.3
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