Tritium
Tritium targets slow frames and stalls in Minecraft, with rendering and server-side tweaks gathered into one optimization module.
What it does
Tritium bundles several optimization features. On the client it speeds up switching the interface language, reduces the frame rate while the game window is unfocused or minimized, and adds leaf culling options ported from OptiFine. On the server it combines nearby dropped items and orbs of experience when entities are dense, and stops ticking entities and fluids far from players. Forge builds also replace generated event classes with lambda constructors to speed up listener setup.
Cloth Config API, Mod Menu and Modern Mixins are required on every loader. Either side can run it, and neither needs it. The mod is open source under the MIT License and is published for 1.13 – 1.21.8 on Fabric, Forge, NeoForge and Quilt, with Legacy Fabric, Ornithe and Rift beta builds for 1.13.2.
Key features
Fast language switching
Switching languages is sped up by intercepting resource bundle reloading, which shortens the wait after a change.
Leaf culling
Foliage rendering follows smart options ported from OptiFine, so hidden leaves can be skipped while drawing.
Entity stacking
Nearby dropped items and experience orbs merge when entity density is high, reducing the load on busy areas.
Distant entity tick reduction
Entities and fluids far from the player stop ticking, which trims server work while the player is elsewhere.
Dynamic framerate
The framerate drops to 1 FPS while the window is unfocused and rendering pauses when the window is minimized.
Compatibility
Latest build for each game version and loader.
1.21.x8 of 8 versions with builds
1.20.x2 of 2 versions with builds
1.19.x5 of 5 versions with builds
1.13.x3 of 3 versions with builds
Only full game releases are shown. This mod publishes no snapshot builds.
Also built for Rift (1 game version). All files on Modrinth
Requirements
Dependencies declared by the latest file for each loader.
Required 2
Use cases
Busy multiplayer servers
Entity stacking and distant tick reduction target servers where many items, orbs and mobs accumulate.
Long play sessions
Dynamic framerate lowers the load when the game is in the background during long sessions.
Who it’s for: Players who want client rendering tweaks and server owners who want to reduce the work done on crowded or distant entities.
How it compares
Graphene is open source under the MIT License, works on Fabric, Forge, NeoForge and Quilt for 1.12.2 – 1.21.9, and either side can run it without the other. betterperf is client-side only, open source under the MIT License and built for Fabric 1.20.1. Put A Plug In it! needs the client but the server can skip it, is open source under the MIT License, and covers 1.15.2 – 26.3 on Fabric, Forge and NeoForge.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Tritium | Fabric, Forge, NeoForge, Quilt, Legacy Fabric, Ornithe and Rift | 1.13 – 1.21.8 | Client or server, optional | 2026-02-12 |
| Graphene | Fabric, Forge, NeoForge and Quilt | 1.12.2 – 1.21.9 | Client or server, optional | 2025-11-04 |
| betterperf | Fabric | 1.20.1 | Client-side only | 2026-05-16 |
| Put A Plug In it! (PAPI) | Fabric, Forge and NeoForge | 1.15.2 – 26.3 | Client required, server optional | 2026-10-07 |
Questions
Which dependencies does Tritium need?
Does Tritium have to be installed on the server?
Are all features available on every loader?
In the catalog
Tritium is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 17,695 mods support Minecraft 1.21.8.
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What the author says
If you encounter bugs or unexpected behavior, please submit an Issue with: - A clear description of the problem - Crash logs (if applicable) - Steps to reproduce the issue Contributions are welcome! If you have ideas for improvements or new features, feel free to submit a pull request.
Official listing
- Modrinth page
- modrinth.com/mod/optitritium
- Owner
- CraftAmethyst
- Published
- 2025-11-09
- Updated on Modrinth
- 2026-02-12
- Facts verified
- 2026-10-15