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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!

61.85M
18.9k
Optimization
AboutChangelogVersions

Lithium 0.21.2 for Neoforge

by 2No2Name on Dec 24, 2025
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Lithium 0.21.2 for Fabric

by 2No2Name on Dec 24, 2025
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Lithium 0.21.2 for Minecraft 1.21.11 fixes an issue with a villager AI optimization.

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

  • Incorrect villager acquire POI optimization breaking raid farms

Lithium 0.21.1 for Fabric

by 2No2Name on Dec 12, 2025
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Lithium 0.21.1 for Neoforge

by 2No2Name on Dec 12, 2025
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Lithium 0.21.1 for Minecraft 1.21.11 fixes a minor issue.

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

  • Register happy ghast navigation correctly after growth state change

Lithium 0.21.0 for Fabric

by 2No2Name on Dec 9, 2025
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Lithium 0.21.0 for Neoforge

by 2No2Name on Dec 9, 2025
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Lithium 0.21.0 is the first release for Minecraft 1.21.11.

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

  • Improvements to multiple POI search methods

Fixes

  • Find POI in the same order as vanilla in all cases
  • Incorrect visual explosion sizes due to multiple explosion rays hitting the same air block multiple times

Lithium 0.11.4 for Fabric

by 2No2Name on Nov 27, 2025
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Lithium 0.11.4 for Minecraft 1.20.1 is a backport of a few bugfixes.

You can check out all configuration options here.

Full Changelog: https://github.com/CaffeineMC/lithium/compare/mc1.20.1-0.11.3...mc1.20.1-0.11.4

Lithium 0.15.1 for Fabric

by 2No2Name on Nov 21, 2025
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Lithium 0.15.1 for Neoforge

by 2No2Name on Nov 21, 2025
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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

Lithium 0.20.1 for Fabric

by 2No2Name on Nov 13, 2025
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Lithium 0.20.1 for Neoforge

by 2No2Name on Nov 13, 2025
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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

Lithium 0.19.2 for Neoforge

by 2No2Name on Oct 17, 2025
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Lithium 0.19.2 for Fabric

by 2No2Name on Oct 17, 2025
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Lithium 0.19.2 for Minecraft 1.21.9 fixes a crash on 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 hopper mixin apply failure on neoforge

Lithium 0.20.0 for Fabric

by 2No2Name on Oct 7, 2025
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Lithium 0.20.0 for Neoforge

by 2No2Name on Oct 7, 2025
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Lithium 0.20.0 is the first release for Minecraft 1.21.10.

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.

Lithium 0.19.1 for Fabric

by 2No2Name on Oct 2, 2025
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Lithium 0.19.1 for Neoforge

by 2No2Name on Oct 2, 2025
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Lithium 0.19.1 for Minecraft 1.21.9 fixes a visual issue.

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 explosion optimization reducing visual explosion size

Lithium 0.19.0 for Fabric

by 2No2Name on Sep 30, 2025
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Lithium 0.19.0 for Neoforge

by 2No2Name on Sep 30, 2025
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Lithium 0.19.0 is the first release for Minecraft 1.21.9.

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

  • Remove incompatible chunk saving optimization

Lithium 0.18.1 for Neoforge

by 2No2Name on Sep 30, 2025
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NOT AN OFFICIAL MINECRAFT SERVICE. NOT APPROVED BY OR ASSOCIATED WITH MOJANG OR MICROSOFT.