Lithium
by CaffeineMC
A server-side optimization mod that improves game logic performance including entity AI, world gen, and block ticking.
PerformanceDownload Lithium
Lithium mc26.2-0.25.3-neoforge sits on our own server, the build CaffeineMC released on 2026-07-29, 0.9 MB. CaffeineMC stays the author of Lithium, the file is only hosted here. 0.9 MB is the whole of Lithium, one file. 23,175 people follow Lithium for the next build.
Download lithium-neoforge-0.25.3_mc26.2.jarFor neoforge on Minecraft 26.2. SHA1 e834dc970751b97605e2d06565b8998e22dd543a is the checksum of this Lithium file. Mc26.2-0.25.3-neoforge is the Lithium build number on this file. 0.9 MB after download, no unpacking for Lithium.
Overview
A server-side optimization mod that improves game logic performance including entity AI, world gen, and block ticking. Lithium lists improved block tick scheduling among its features. 1 pack and 2 loaders carry Lithium. It is built for server owners and players who want faster ticks without changing any behaviour. CaffeineMC files Lithium under Performance.
It optimises the game's general logic, AI, physics, and chunk handling while staying strictly vanilla-accurate, so nothing you build behaves differently. Lithium counts 5 features across 37 versions. It brings reduced server tick times. It reaches 26.2. It covers 37 game versions.
Lithium mc26.2-0.25.3-neoforge is downloadable here, 0.9 MB. It includes no gameplay changes. It ships under LGPL. 1 pack here ships Lithium. 23,175 people watch Lithium for updates.
CaffeineMC tags Lithium as server, tick and optimization. It shares Performance with 12 others. It brings faster world generation. It lists improved block tick scheduling too. 37 builds carry the Lithium name.
Lithium keeps pace with the game as CaffeineMC publishes it. It spans 1.16.2 to 26.2. Crucial 2 already ships Lithium in its own list. 1.16.2 is the oldest game version this Lithium list reaches back to. It includes improved block tick scheduling.
Mod Loaders
Lithium ships a separate build for each of Fabric and Quilt. It needs one loader, Lithium ignores the other. CaffeineMC counts 37 published Lithium builds. Our own Lithium copy is the neoforge build.
Minecraft Versions
37 game versions carry Lithium, 1.16.2 at the oldest and 26.2 at the newest. A Lithium jar built for another version will not load Lithium. It reaches further than 116 mods here. Every Lithium jar targets one version, so Lithium numbers do not swap.
26.1.1, 26.1.2 and 26.2 are the newest game versions with a Lithium build. Your launcher version and the Lithium jar version have to match. It counts 5 features across 37 versions. Each number exists per loader, so 74 Lithium combinations in all.
Lithium compared
Lithium is weighed against one other mod here. Each comparison puts the loaders, the game versions and what they need beside each other, without picking a winner.
Release history
CaffeineMC has published 176 Lithium builds, the first on 2021-01-03 and the newest on 2026-07-29. The date says when Lithium last moved, not how long it will keep working. 164 of them are full releases, the rest are test builds of Lithium. 39 Lithium builds went out in 2026.
| Build | Published | For | Downloads |
|---|---|---|---|
| mc26.2-0.25.3-neoforge | 2026-07-29 | NeoForge · 26.2 | 49K · 0.9 MB |
| mc26.2-0.25.3-fabric | 2026-07-29 | Fabric, Quilt · 26.2 | 2M · 0.9 MB |
| mc26.1.2-0.24.7-neoforge | 2026-07-29 | NeoForge · 26.1, 26.1.1, 26.1.2 | 16K · 0.9 MB |
| mc26.1.2-0.24.7-fabric | 2026-07-29 | Fabric, Quilt · 26.1, 26.1.1, 26.1.2 | 438K · 0.9 MB |
| mc26.2-0.25.2-neoforge | 2026-07-10 | NeoForge · 26.2 | 33K · 0.9 MB |
| mc26.2-0.25.2-fabric | 2026-07-10 | Fabric, Quilt · 26.2 | 2M · 0.9 MB |
| mc26.2-0.25.1-fabric | 2026-06-27 | Fabric, Quilt · 26.2 | 836K · 0.9 MB |
| mc26.2-0.25.1-neoforge | 2026-06-27 | NeoForge · 26.2 | 13K · 0.9 MB |
2026: 39 builds · 2025: 66 builds · 2024: 28 builds · 2023: 10 builds · 2022: 19 builds · 2021: 14 builds
Key Features
Lithium brings a focused set of features to the table. Highlights include optimized entity ai pathfinding, plus faster world generation, with the full list below.
- Optimized entity AI pathfinding
- Faster world generation
- Improved block tick scheduling
- Reduced server tick times
- No gameplay changes
Tags
How to install Lithium
Lithium takes one of Fabric and Quilt. It lists optimized entity ai pathfinding among its features. It shares Performance with 12 others. It runs on the server only.
- 1Install Fabric for the Minecraft version you want Lithium on. It lists 37 of them, 1.16.2 to 26.2. Fabric and Quilt each work for Lithium, one at a time. A profile on another version never starts Lithium.
- 2Nothing has to go in before Lithium. No library is listed under Lithium. The Lithium page names its own requirements. A fresh profile is enough for Lithium.
- 3Drop lithium-neoforge-0.25.3_mc26.2.jar into the mods folder. 0.9 MB is the whole Lithium file. Only the server needs Lithium. A pack with Lithium already has that file in place.
- 4Start the game and look for Lithium in the mods list. It loads on its own once the version matches. No Lithium entry means the loader or the version is off. 1 pack and 2 loaders carry Lithium.
Lithium runs on 37 game versions, 1.16.2 to 26.2. 26.2 is covered by Lithium. Each Lithium jar is built per version. 1.16.2 is as far back as Lithium goes.
See our full mod install guideCompatibility & alternatives
Fabric and Quilt run Lithium today. It includes faster world generation. 23,175 watchers follow Lithium today. It runs on the server only. 37 versions carry Lithium.
sodium, ferritecore and starlight sit well next to Lithium. It spans 1.16.2 to 26.2. It competes in Performance. Sodium and Embeddium share the shelf with Lithium. Canary and Radium cover ground Lithium also covers.
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