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Lithium (Fabric/NeoForge)

An optimization mod for Minecraft which improves server performance significantly.

File Details
DownloadInstall

Lithium mc1.21.11-0.21.4 for Neoforge

By2No2Name
  • R
  • Mar 11, 2026
  • 858.11 KB
  • 40.3K
  • 1.21.11
  • NeoForge

File Name

lithium-neoforge-0.21.4+mc1.21.11.jar

Supported Versions

  • 1.21.11

Curse Maven Snippet

NeoForge

implementation "curse.maven:lithium-360438:7740898"
Curse Maven does not yet support mods that have disabled 3rd party sharing

Learn more about Curse Maven

Lithium 0.21.4 for Minecraft 1.21.11 adds several optimizations and fixes.

Make sure to take a backup of your world before using the mod and please report any bugs and mod compatibility issues at the issue tracker. You can check the description of each optimization and how to disable it when encountering a problem.

Additions

  • Optimize nitwit jobsite search (Thanks to jcw780)
  • Optimize explosions by caching block states (Based on PR by pwouik)
  • Reduce iteration and allocation of block to entity effects
  • Add missing palette crash recovery attempt
  • Use cached false values for fluid hole search

Fixes