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The Unstable SMP Simulator logo

The Unstable SMP Simulator

Modpack

MOST UPDATED Unstable Simulator This is a Minecraft modpack page for the Unstable SMP Battle Simulator, bundling CarpetPVPMaps’ battle maps with pre-installed PvP and performance mods so players can install and play instantly without manual setup.

Type

Modpack

Modrinth Downloads

29,266

Modrinth ID

zHP6LZ7W

Last Updated

Jul 29, 2026

Description

Unstable SMP: The LAW

Image from Wemmbu

📦 About

I made this modpack for players to install Unstable Simulator more easily — without the tedious process of installing maps, selecting mods, and configuring everything manually.

All the necessary mods for PvP and optimization are pre-installed.

🔀 Version Differences

Version Simulator Type 1.21.11-x CarpetPVP-based simulators Vex-1.21.11-x Vexbot-based simulators

🤖 Vexbot Simulators (Vex-1.21.11-x)

  • Lakerek VS Wemmbu Simulator
  • Law End Island Defense Simulator
  • Mist Simulator
  • Smuggler Path Law Fight
  • Underworld Simulator
  • Warden VS Wemmbu
  • Zam Invasion Simulator
  • Ocean Rangers Simulator
  • Unstable SMP Tournament
  • The Council Simulator
  • Definitive FlameFrags vs Wemmbu Simulator
  • Combat Master Training Simulator
  • Purgatory Vs Spokeishere Iron Simulator
  • Jadenman Vs Wemmbu Simulator
  • Theobaldthebird Vs Shoebilly Simulator

if ur bots arent spawning do /vexbot settings advancedspawn true

fixed bot not attacking Vex-1.21.11-6.2

Not included due to max file size: Null Simulator

All Credits to MeteorIsaac, Novit PvP Maps, solyn, and CarpetSimulators

🗺️ CarpetPVP Maps (1.21.x & 1.21.11-x)

All Credits to CarpetPVPMaps

Map Link Unstable SMP Final Law Battle Simulator Download 2v1000 Law Battle Simulator Unstable SMP Download Unstable SMP Great Sea Law Battle Simulator Download Unstable SMP Tournament Simulator (FREE) Download Cindercrest Battle Simulator —

Not included due to max file size: Unstable SMP Experience

Many of these maps features like mace bot will not work at 1.21.11

🛒 You can buy more maps from CarpetPVPMaps Patreon

⚠️ You need minimum 18 render distance and simulation distance for these maps to work

🧩 Mods

Mod Category Fabric API Core Carpet Core Modify Player Data Core Carpet crit fix PvP Fix Carpet mace fix PvP Fix Wither Death Sounds QoL ukulib Library uku's Armor HUD QoL BetterHurtCam QoL Sodium Performance Lithium Performance Alternate Current Performance AppleSkin QoL and more.. —

👥 Multiplayer

You can use Essential to play with others!

⚠️ Your friends need to have the same modpack installed too.

💻 Custom Commands

Command Description /trigger lobby Teleports you back to the lobby /trigger stab Gives you orbital stab shot /trigger nuke Gives you orbital nuke shot

🎬 Showcase

Compatibility

Mod Loaders

Fabric

Game Versions

1.21 1.21.11

Recommended Gear

Affiliate

Hardware and extras that pair well with this modpack.

As an Amazon Associate I earn from qualifying purchases.

Screenshots

Similar Modpacks

Contained Mods (24)

AppleSkin

AppleSkin

Adds some useful information about food/hunger to the HUD

Mod 499,700,478
ImmediatelyFast

ImmediatelyFast

Speed up immediate mode rendering in Minecraft

Mod 302,002,147
Clumps

Clumps

Clumps XP orbs together to reduce lag

Mod 406,916,619
Entity Culling Fabric/Forge

Entity Culling Fabric/Forge

Using async path-tracing to hide BlockEntities/Entities that are not visible

Mod 389,594,541
Fabric API

Fabric API

Core API library for the Fabric toolchain

Mod 480,123,459
Sodium

Sodium

The fastest and most compatible rendering optimization mod for Minecraft. Now available for both NeoForge and Fabric!

Mod 371,237,042
Iris Shaders

Iris Shaders

A modern shader pack loader for Minecraft intended to be compatible with existing OptiFine shader packs

Mod 173,260,104
FerriteCore

FerriteCore

Memory usage optimizations

Mod 148,668,120
Lithium (Fabric/NeoForge)

Lithium (Fabric/NeoForge)

An optimization mod for Minecraft which improves server performance significantly.

Mod 220,833,929
Mod Menu

Mod Menu

Adds a mod menu to view the list of mods you have installed.

Mod 221,530,238
Sodium Extra

Sodium Extra

Features that shouldn't be in Sodium

Mod 165,676,278
Text Placeholder API

Text Placeholder API

Placeholder and Text manipulation library for your Minecraft mods.

Mod 63,061,052
BetterHurtCam

BetterHurtCam

nohurtcam but better

Mod 3,561,020
uku's Armor HUD

uku's Armor HUD

Minimalist vanilla-like widget to display your armor items and their durability. Forked by uku.

Mod 8,353,686
HeroBot

HeroBot

Framework for fabric based server side players (and extra helpful settings)

Mod 1,324,441
Immersive Optimization

Immersive Optimization

A lightweight entity-tick-scheduler for doubling your TPS.

Mod 16,735,236
MaLiLib

MaLiLib

A library mod required for masa's client-side mods

Mod 53,507,532
ukulib

ukulib

Small Utility Mod for Uku's Mods.

Mod 12,850,466
Explosion Breaks No Block

Explosion Breaks No Block

A simple utility mod that allows you to toggle whether explosions break blocks (still cause damage) and whether explosio...

Mod 405,720
Unstable Generation

Unstable Generation

This terrain generation mod mimics Unstable SMP’s world generation. It adds Amplified (62,000 blocks away), the Great Se...

Mod 36,703
Modify Player Data

Modify Player Data

This mod allows Minecraft's data commands (/data, /execute store, etc.) to modify player data

Mod 744,208
VexBot - PvP Against Bots

VexBot - PvP Against Bots

Super smart Minecraft bots.Their better than PvP BOT

Mod 37,279
Orbital Strike Cannon | DataPack | Mod | Plugin

Orbital Strike Cannon | DataPack | Mod | Plugin

This DataPack/mod adds an orbital cannon, it can be called with a command/special fishing rod

Mod 633,335
Wither Death Sounds

Wither Death Sounds

a Wither Spawning Sound when a player dies just like Unstable SMP

Mod 47,022

External Resources