Custom unofficial Slimefun core build for Paper/Purpur 1.21.11 with Java 21 support, compatibility fixes, modern startup support, and stable loading for updated SF4 addons.
Verified by MCModsHub
- Ships as SlimefunCore4-2834.jar — drop this file into the mods folder
- Download size: 21.3 MB
- Download link checked 29 Aug 2026 — working
These come from our own check of the pack file, not from the source page.