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Lithium

Lithium

No-compromises game logic optimization mod. Well suited for clients and servers of all kinds. Now available for Fabric and NeoForge!

90.62M
21.2K
90.62M
21.2K

Compatibility

Minecraft: Java Edition

26.1.x
1.21.x
1.20.x
1.19.x
1.18.x
1.17.x
1.16.2–1.16.5

Platforms

Supported environments

Client-side
Server-side
Client and server

Links

Report issues View source Join Discord server
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Tags

Creators

Details

Licensed LGPL-3.0-only
Published 5 years ago

Lithium 0.20.1 for Fabric

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Changelog

Lithium 0.20.1 for Minecraft 1.21.10 includes mod compatibility improvements and a bugfix.

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.

Changes

  • Minor improvement to explosion optimization (Thanks to jcw780)
  • Re-enable cached sea level optimization
  • Compatibility with NeoForge chunk access during chunk loading
  • Improved compatibility with mods that create entities for outside-world display purposes

Fixes

  • Detect removal of double inventories hoppers interact with correctly

Files

lithium-fabric-0.20.1+mc1.21.10.jar(815.87 KiB) Primary
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Metadata

Release channel

Release

Version number

mc1.21.10-0.20.1-fabric

Loaders

Fabric Quilt

Game versions

1.21.10

Environment

Client and server, best when installed on both

Downloads

2716911

Publication date

November 13, 2025 at 10:32 PM

Version ID