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Very Many Players (Fabric) logo

Very Many Players (Fabric)

Mod

by ishlandmc

A Fabric mod designed to improve server performance at high playercounts.

Type

Mod

CurseForge Downloads

3,692,997

CurseForge ID

552542

Modrinth Downloads

17,900,832

Modrinth ID

wnEe9KBa

Last Updated

Nov 7, 2026

Description

Very Many Players

A Fabric mod designed to improve server performance at high playercounts.

VMP is still in early development and things are expected to break. Please report any issues to our issue tracker.

So what is VMP?

Very Many Players, or VMP for short, is a Fabric mod designed to improve general server performance at high playercount without sacrificing vanilla functionality or behavior.
For the best performance it is recommended to use VMP with Lithium.

How VMP achieves its performance improvements?

Server-side game logic performance improvements:

  • Uses area maps to optimize nearby packet sending and player lookups
  • Uses cache to optimize entity trackers, fluid state lookups and ingredient matching
  • Optimizes entity iteration for collisions
  • Optimizes ticket propagator using MCUtil from the Paper project (patch licensed under MIT)

Client-side game logic performance improvements:

  • Makes time source to use built-in Java time source instead of GLFW via JNI calls

Networking performance & responsiveness improvements:

  • Uses our own chunk sending mechanism (optionally with packet-level rate-limiting)
  • Adds packet-level per-player render distance
  • Makes vanilla tcp connections more responsive using packet priority from raknetify
    (works best when the server is connected without reverse proxies such as velocity and ssh port forwarding)

… and more

Support

Our issue tracker: link
Our discord server: link

More information

Check out the README.md here: https://github.com/RelativityMC/VMP-fabric

Compatibility

Mod Loaders

Client Fabric Server

Game Versions

26.1-snapshot 26.3

Recommended Gear

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Hardware and extras that pair well with this mod.

Minecraft Enderman Character Plush

Minecraft Enderman Character Plush

Enderman plush toys, and a reliable gift for a younger player.

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Included in Modpacks (621)

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Savaru IV - Kohtalon Mies Savaru IV - Kohtalon Mies Performance Step Up Performance Step Up Smooth Journey Smooth Journey EMF EMF The Ultimate PVP Modpack The Ultimate PVP Modpack Modern Beta Modern Beta Just Optimised Just Optimised Actions & Visuals Actions & Visuals Awesomely Optimized Awesomely Optimized Performance Eternal Performance Eternal MC Enhanced [FABRIC] MC Enhanced [FABRIC] Celestial Performance [QoL] Celestial Performance [QoL] Simplicity Refabricated: Vanilla+ Simplicity Refabricated: Vanilla+ Optimize My Server! Optimize My Server! Maximal optimized Maximal optimized AstralPVP AstralPVP Riptidium Riptidium Muoh Optimize Modpack (Pojav + Pc) Muoh Optimize Modpack (Pojav + Pc) Everwild (Cobblemon) Everwild (Cobblemon) Better QoL Better QoL ATOMLAND Optimized ATOMLAND Optimized Strictly Optimized Strictly Optimized StaTech Industry: GoG StaTech Industry: GoG Maxed Optimized Maxed Optimized Liquid Client Liquid Client Bare PVP Bare PVP MysticCraft Divivded Kingdoms MysticCraft Divivded Kingdoms Quick Vanilla+ Quick Vanilla+ Optimization Plus Optimization Plus Vulkan Updated Vulkan Updated Simple Vanilla Overhaul Simple Vanilla Overhaul The Standard Experience The Standard Experience Smooth Journey (Lite Version) Smooth Journey (Lite Version) DungeonCraft Adventures [PHTB] DungeonCraft Adventures [PHTB] X's enhanced experience X's enhanced experience Rose Client Rose Client Minecraft Baseball For Lunar Client Minecraft Baseball For Lunar Client Hama's Standalone Featherclient Hama's Standalone Featherclient Performance MC Performance MC Statera Statera OptimalFPS OptimalFPS EasyOptimiz EasyOptimiz Lightning (FPS) Lightning (FPS) macOS Metal macOS Metal Essential Optimized Essential Optimized Developer Toolkit Developer Toolkit Wildeprojekt Wildeprojekt foxward-full foxward-full Faster on Vulkan Faster on Vulkan Cobblemon.RPG Cobblemon.RPG Flawlessly Optimized Flawlessly Optimized FrenchLegacy - Hypixel Skyblock FrenchLegacy - Hypixel Skyblock Optimized Vanilla Extra (OVE) Optimized Vanilla Extra (OVE) BLACK_MC optimization BLACK_MC optimization Legacy4Server Legacy4Server ITR 整合包 ITR 整合包 Vanilla Horizons Vanilla Horizons FLUSTIFY OPTI FLUSTIFY OPTI SJ's OPTIMIZED SJ's OPTIMIZED Ziptastic Ziptastic V-Cube V-Cube Sengoku Jidai - Samurai Legends Sengoku Jidai - Samurai Legends Star Wars Unbound Star Wars Unbound Vanilla's Finest Vanilla's Finest Impressively Optimized. Impressively Optimized. Sakeva Optimized Sakeva Optimized Legend's Optimized Legend's Optimized Essência Mods Essência Mods Lurker in the Fog: Herobrine’s Dominion Lurker in the Fog: Herobrine’s Dominion Aedans Vanilla Plus Aedans Vanilla Plus CobbleValley CobbleValley MiraOptimizer✨SODIUM MiraOptimizer✨SODIUM OnlyFast OnlyFast Seecret Sunday Seecret Sunday Potato PVP Potato PVP Helios Helios [FMCS-M] fps X media X crystal x survival Optimized MEDIUM [FMCS-M] fps X media X crystal x survival Optimized MEDIUM PrimeBlocks.net Modpack PrimeBlocks.net Modpack CREATIVE FPS CREATIVE FPS Sherbert Sherbert Advanced Optimized Advanced Optimized Cherry Vanilla Cherry Vanilla Supercharge Supercharge Avalore (Modpack) Avalore (Modpack) Streamline Master Streamline Master Hypixel is amazing! Hypixel is amazing! Reload Again Reload Again Simply Vanilla Simply Vanilla Mine 'n' Shine - Reloaded Mine 'n' Shine - Reloaded LFY Experience LFY Experience WoKPack WoKPack Simply OptiFabric Simply OptiFabric Enhanced Optimisation Enhanced Optimisation Shenanigans Shenanigans Negative Fps Negative Fps Waguri CPvP v2 Waguri CPvP v2 Esentiale Esentiale Strawberries N' Creme Strawberries N' Creme Decked Out Vanilla+ Decked Out Vanilla+ GGC recommended GGC recommended

External Resources

CurseForge Modrinth Source Code Issues