The Unstable SMP Simulator
ModpackMOST 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
25,037
Modrinth ID
zHP6LZ7W
Last Updated
Jul 25, 2026
Description

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
❌ 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
Game Versions
Screenshots
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Contained Mods (24)
AppleSkin
Adds some useful information about food/hunger to the HUD
ImmediatelyFast
Speed up immediate mode rendering in Minecraft
Clumps
Clumps XP orbs together to reduce lag
Entity Culling Fabric/Forge
Using async path-tracing to hide Tiles/Entities that are not visible
Fabric API
Core API library for the Fabric toolchain
Sodium
The fastest and most compatible rendering optimization mod for Minecraft. Now available for both NeoForge and Fabric!
Iris Shaders
A modern shader pack loader for Minecraft intended to be compatible with existing OptiFine shader packs
FerriteCore
Memory usage optimizations
Lithium (Fabric/NeoForge)
An optimization mod for Minecraft which improves server performance significantly.
Mod Menu
Adds a mod menu to view the list of mods you have installed.
Sodium Extra
Features that shouldn't be in Sodium
Text Placeholder API
Placeholder and Text manipulation library for your Minecraft mods.
BetterHurtCam
nohurtcam but better
uku's Armor HUD
Minimalist vanilla-like widget to display your armor items and their durability. Forked by uku.
HeroBot
Framework for fabric based server side players (and extra helpful settings)
Immersive Optimization
A lightweight entity-tick-scheduler for doubling your TPS.
MaLiLib
A library mod required for masa's client-side mods
ukulib
Small Utility Mod for Uku's Mods.
Explosion Breaks No Block
A simple utility mod that allows you to toggle whether explosions break blocks (still cause damage) and whether explosio...
Unstable Generation
This terrain generation mod mimics Unstable SMP’s world generation. It adds Amplified (62,000 blocks away), the Great Se...
Modify Player Data
This mod allows Minecraft's data commands (/data, /execute store, etc.) to modify player data
VexBot - PvP Against Bots
Super smart Minecraft bots.Their better than PvP BOT
Orbital Strike Cannon | DataPack | Mod | Plugin
This DataPack/mod adds an orbital cannon, it can be called with a command/special fishing rod
Wither Death Sounds
a Wither Spawning Sound when a player dies just like Unstable SMP