UnstableSFX-1.21.11.jar is a release file of the Minecraft plugin UnstableSFX, made for Minecraft 1.21.2, 1.21, 1.21.3, 1.21.8, 1.21.4, 1.21.5, 1.21.5-Snapshot, 1.21.7, 1.21.1, 1.21.6, 1.21.9, 1.21.10 and more. It was published on June 28, 2026 and is 0 MB in size. For the full description, screenshots and every other version, visit the UnstableSFX plugin page.
How to install: Put the .jar into the plugins folder of your Paper, Spigot or Bukkit server and restart the server.
