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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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As an Amazon Associate I earn from qualifying purchases.

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Included in Modpacks (621)

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Outatime Gamers Vanilla+ Outatime Gamers Vanilla+ Quantum FPS Quantum FPS CatModOpti CatModOpti FPS Flood; Pixelforge Collective FPS Flood; Pixelforge Collective Note Block SMP Note Block SMP Banquito Banquito Optimizium Optimizium JMFPS JMFPS Crazily Optimized Crazily Optimized SMP Starter Pack SMP Starter Pack MacOS Ready MacOS Ready shah bid shah bid JS Life+ JS Life+ Creator Optimized Creator Optimized Glatzencraft Glatzencraft Echoes of Alpha: The Herobrine Myth Echoes of Alpha: The Herobrine Myth MC23s Modpack MC23s Modpack Simply Optimized But Better Simply Optimized But Better Sven's Venture Sven's Venture CreatorCraft 2 CreatorCraft 2 Killercode's SMP Killercode's SMP CookieAttack 5 CookieAttack 5 Miummy! Miummy! MC Plus MC Plus Vanilla Reloaded Vanilla Reloaded Ultimate Client Ultimate Client Pixel's Simply Reoptimized Pixel's Simply Reoptimized Peace Optimizer Peace Optimizer Performium [expanded] Performium [expanded] DonutSMP Enhanced DonutSMP Enhanced Bosstimized Bosstimized Hyblock Hyblock Cobblemon ViewerSMP Cobblemon ViewerSMP Vanilla Essencia Vanilla Essencia Beyond Vanilla+ Beyond Vanilla+ SuperCraft SuperCraft Ultimate Hypixel Mining Ultimate Hypixel Mining Refabricated Villagers: Vanilla+ Refabricated Villagers: Vanilla+ Neoclassic Neoclassic Graviton Graviton BANGLA OPTIMIZE BANGLA OPTIMIZE NAF Modpack NAF Modpack Just Vanilla+ Just Vanilla+ Sharkingo! Sharkingo! Ultimate Hypixel Farming Ultimate Hypixel Farming nonnButter's Vulkan Optimization nonnButter's Vulkan Optimization Matched Matched Purely Optimized Purely Optimized Mac Native Mac Native PeakMine PeakMine Maincra Maincra Astral Project Astral Project BIG CLIENT BIG CLIENT [FMCS-S] fps X media X crystal x survival Optimized SERVER [FMCS-S] fps X media X crystal x survival Optimized SERVER Saniasu Saniasu Rainium Rainium Cadmium Cadmium ScenicCraft ScenicCraft By Design Sosaland Sosaland Performium Revived Performium Revived Azura Adventure Azura Adventure Ultimate Hypixel Fishing Ultimate Hypixel Fishing Latveria Latveria Heavily Optimized Heavily Optimized Better client Better client DejaVu Anemoia DejaVu Anemoia Better Frames Per Second! Better Frames Per Second! Expanded Adventures: Vanilla+ Expanded Adventures: Vanilla+ Ultimate Hypixel Foraging Ultimate Hypixel Foraging Smolder's Ultimatum Smolder's Ultimatum Vanilla & Voyage Vanilla & Voyage Skull Boost Skull Boost Horizons Edge Horizons Edge Guy's Server Modpack Guy's Server Modpack Clear Skies Clear Skies Onyx Onyx Ultimate Hypixel Dungeons Ultimate Hypixel Dungeons OpTimatic LITE Liye Liye Traveller's Heaven Traveller's Heaven Mundo Mods Reforged Mundo Mods Reforged Oddymized Oddymized Extremely optimized Extremely optimized ZenCobblemon ZenCobblemon Lightest Lightest Definitive Vanilla Definitive Vanilla andrzejczakpack andrzejczakpack Well It's Optimized Well It's Optimized Luconia Network Modpack Luconia Network Modpack Performance Enhanced Performance Enhanced Remboy Better Remboy Better Wynncraft Xtra Wynncraft Xtra MCPvP Mods MCPvP Mods Ultimate Client ModPack Ultimate Client ModPack Agile Optimized Agile Optimized OptiCoreFPS OptiCoreFPS Velocity PVP Velocity PVP Pharaoh's Modpack | Modpack van de Farao Pharaoh's Modpack | Modpack van de Farao Apex optimized Apex optimized

External Resources

CurseForge Modrinth Source Code Issues