NumFlux

A small server-only mod that speeds up certain interactions between entities and simplifies certain mathematical formulas.

by Mr.ToadMobs Optimization Utility

FabricNeoForgeQuilt

Loaders: FabricNeoForgeQuilt
Downloads on Modrinth: 15.6K
Followers on Modrinth: 71
versions: 20
Updated: October 4, 2026Oct 4
Published: in 2025

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At a glance

Runs on Fabric, NeoForge and Quilt

For Minecraft 26.1–26.1.2, 26.3 …

Server only — players don't need to install it

Latest version — 1.0.6-26.3-neo from October 4, 2026

Requires Architectury API

License MIT — free

Where it's needed

In gamenot neededOn serverrequired

Install on the server only; players don't need it

Game versions1.20.5–1.21.8, 26.1–26.1.2, 26.3

About ➗:

neo r_a

The typical performance boost is about 2–4%; however, if the server is heavily loaded with items, arrows (on the ground), or mobs within a large radius, the boost can reach 10% or more.

Features ✨:

Fast math formulas
Particle Fixes for Arrows
Fixing the burning arrows
Improvements to the mob despawn mechanism
Minor improvements, the Zero-GC approach, and caches

This mod is a fork of GPUBooster and was created with the goal of separating server-side functions and moving the original exclusively to the client side.

Other my mods:

GPUBooster(Client-side optimizations)
MovieMaker(Content)

FAQ

How to install NumFlux?

Install Fabric for your Minecraft version, download NumFlux for the same version and loader, put the file into the mods folder and launch the game with the loader profile.

Which Minecraft versions does NumFlux support?

NumFlux has builds for Minecraft 1.20.5–1.21.8, 26.1–26.1.2, 26.3.

Is NumFlux needed on the server?

Server only — players don't need to install it

License and source

MIT Licensefree to use and share with credit to the author

Original — Modrinth↗Files unchanged, verified with SHA-512Is this your mod? For rights holders