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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!

64.70M
19.2k

Compatibility

Minecraft: Java Edition

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

Platforms

Fabric
NeoForge
Quilt

Supported environments

Client-side
Server-side
Client and server (optional)

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Links

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Creators

CaffeineMC
CaffeineMCOrganization
jellysquid3
jellysquid3 Original Author
2No2Name
2No2Name Project Lead

Details

Licensed LGPL-3.0-only
Published 5 years ago
Updated 2 weeks ago

Lithium 0.15.1 for Fabric

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Changelog

Lithium 0.15.1 for Minecraft 1.21.1 backports several bug fixes, including better compatibility with neoforge.

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.

Fixes

  • Fix missing initialization of block counting in empty sections
  • Mod compatibility between raycast optimization and ponder
  • Fix NeoForge chunk load tricks compatibility
  • Fix double inventory invalidation in hopper optimization
  • Hoppers unsubscribe from block entities and double inventories when invalidated

Files

lithium-fabric-0.15.1+mc1.21.1.jar(754.73 KiB) Primary
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Metadata

Release channel

Release

Version number

mc1.21.1-0.15.1-fabric

Loaders

Fabric Quilt

Game versions

1.21.1

Downloads

1448059

Publication date

November 21, 2025 at 5:10 PM

Publisher

2No2Name

2No2Name

Project Lead

Version ID