SlimefunCore
2872Custom unofficial Slimefun core build for Paper/Purpur 1.21.1x 26.x with Java 21-25 support, compatibility fixes, modern startup support, and stable loading for updated SF4 addons.
SlimeFunCore 4.0v
✨ UNOFFICIAL MODIFIED VERSION ✨
Maintained by R2Ksanu
💬 DISCORD •
🐞 REPORT A BUG •
📖 ORIGINAL WIKI •
❤️ ORIGINAL PROJECT
Slimefun turns your Minecraft server into a full-blown modpack — without installing a single mod. Advanced tech, powerful magic, automated factories, and hundreds of custom items, all running on vanilla clients.
This is an unofficial fork of the original project, updated and maintained by R2Ksanu to bring full support for the latest Minecraft & Java releases.
📦 SUPPORTED VERSIONS
 Build |  Minecraft Version |  Loader |
|---|---|---|
2710 | 1.21.x → 1.21.11 |  Paper / Purpur |
2800 | 26.1 → Up | Paper / Purpur |
📊 STATUS UPDATE
 Original Base Version | 1.19.4 |
 Updated To | 1.21.x → 1.21.11 & 26.1+ |
 Compatibility |  100% Working |
 Overall Status |  Success |
 Tested On | Paper / Purpur — Java 21 / Java 25 |
Feedback & bug reports are highly appreciated — always test on a backup server before deploying to production!
🌟 WHAT IS SLIMEFUN?
Legendary in the Minecraft community since 2013.
⚙️Advanced Tech |
🔮Magic & Altars |
🏭Full Automation |
🎒500+ Items |
This unofficial build keeps the spirit of the original alive, while bringing full support for the absolute latest Minecraft versions.
🚀 ADDONS & FUTURE UPDATES
Community addons are being updated for Minecraft 1.21.x+, keeping the whole Slimefun ecosystem alive on modern Purpur/Paper servers.
✨ What's New in Addon Management
 | Dynamic addon list — shows cloud-managed & manually installed addons |
 | Status overview — managed, loaded, and unmanaged addon counts |
 | Smarter GitHub jar selection — matches by addon name first |
 | Managed addon detection — reads directly from the jar's plugin.yml |
 | Fallback flags for remote sync — now fully respected |
⌨️ Addon Commands
/sf addon list # List all addons (managed + installed)
/sf addon status # Show addon counts and sync state
/sf addon sync # Manually trigger a cloud config sync
/sf addon enable <name> # Enable a managed addon
/sf addon disable <name> # Disable a managed addon
/sf addon update <name> # Update a specific addon
/sf addon download <name> # Download a managed addon
/sf addon remove <name> # Remove a managed addon
| Addon Type |  Progress |  Notes |
|---|---|---|
 Community Addons | ██████░░░░░░░░░░░░░░ 30% | Updates in progress for 1.21.x+ |
 Main Slimefun Core | ████████████████████ 100% | Fully working on Purpur/Paper 1.21.x+ |
📸 SCREENSHOTS
Reused from the original project — showcasing the absolute power of Slimefun
Reactors & Electricity | 
Awesome Factories | 
Magic & Altars
🌐 COMMUNITY & SUPPORT
Join the community to get support, report bugs, follow updates, and test upcoming builds!
🤝🏻 CREDITS & DISCLAIMER
This is an unofficial fork and is not affiliated with the original Slimefun developers or team.
All credit goes to the original Slimefun Team.
| Role | Credit |
|---|---|
 Original Project Creator | TheBusyBiscuit |
 Original Project Team | Slimefun Team |
 Modified & Updated By | R2Ksanu |
 Screenshots | Courtesy of the original Slimefun community |
This project follows the GNU GPLv3 License.
You are free to modify and share it — but you must give proper credit and keep the same license.
See the LICENSE for full details.
💚 Thank you for using Slimefun 4.0v-UNOFFICIAL! 💚
Enjoy your modpack-like experience on the latest Minecraft version.
Made with ❤️ for the Minecraft community.
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