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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!

46.90M
17.1k
Optimization
AboutChangelogVersions

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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Lithium 0.18.1 for Fabric

by 2No2Name on Sep 30, 2025
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Lithium 0.18.1 for Minecraft 1.21.8 adds several new optimizations.

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 piglin/hoglin repellent and turtle egg searches (Thanks to jcw780)
  • Optimize random ticking
  • Optimize precipitation

Changes

  • Re-enable previously broken inline world height optimization

Fixes

  • Fix missing initialization of block counting in empty sections
  • Fix compatibility issue that convert client side mobs to nbt
  • Fix incorrect section y coordinates used in experimental optimization (Thanks to jcw780)

Lithium 0.18.0 for Neoforge

by 2No2Name on Jul 17, 2025
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Lithium 0.18.0 for Fabric

by 2No2Name on Jul 17, 2025
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Lithium 0.18.0 is the first release for Minecraft 1.21.8.

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 0.18.0 for Fabric

by 2No2Name on Jun 30, 2025
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Lithium 0.18.0 for Neoforge

by 2No2Name on Jun 30, 2025
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Lithium 0.18.0 is the first release for Minecraft 1.21.7.

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 0.17.0 for Neoforge

by 2No2Name on Jun 17, 2025
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Lithium 0.17.0 for Fabric

by 2No2Name on Jun 17, 2025
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Lithium 0.17.0 is the first release for Minecraft 1.21.6.

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 0.16.3 for Fabric

by 2No2Name on Jun 16, 2025
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Lithium 0.16.3 for Neoforge

by 2No2Name on Jun 16, 2025
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Lithium 0.16.3 for Minecraft 1.21.5 includes two minor optimizations and a mod compatibility improvement.

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

  • Reintroduce expiring chunk ticket optimization
  • Chest animation sleeping optimization

Changes

  • Remove ponder mod compatibility workaround due to fix on their side

Fixes

  • Fix wrong position used in fluid flow calculations causing mod compatibility issues

Lithium 0.16.2 for Fabric

by 2No2Name on Apr 9, 2025
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Lithium 0.16.2 for Neoforge

by 2No2Name on Apr 9, 2025
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Lithium 0.16.2 for Minecraft 1.21.5 fixes a few issues with experimental settings.

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 various issues and mod compatibility problems with experimental client brain optimization

Additions

  • Experimental client biome particle spawning optimization
  • Experimental client entity ticking optimizations

Lithium 0.15.3 for Neoforge

by 2No2Name on Apr 9, 2025
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Lithium 0.15.3 for Fabric

by 2No2Name on Apr 9, 2025
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Lithium 0.15.3 for Minecraft 1.21.4 fixes a few issues with experimental settings.

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 various issues and mod compatibility problems with experimental client brain optimization

Additions

  • Experimental client biome particle spawning optimization
  • Experimental client entity ticking optimizations
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NOT AN OFFICIAL MINECRAFT SERVICE. NOT APPROVED BY OR ASSOCIATED WITH MOJANG OR MICROSOFT.