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Unstable SMP Simulator
Modrinth Modpack

Unstable SMP Simulator

Pre-configured Unstable SMP battle simulator modpack. Includes: Final Law Battle, 2v1000 Law Battle, Great Sea Law Battle, Tournament, Cindercrest Battle, Lakerek VS Wemmbu, Law End Island Defense, Mist, Smuggler Path Law Fight, Underworld

Minecraft product info

Important product information

Compatibility, Minecraft versions, loaders, and external source data.

Type

Modpack

Access

Free

Latest version

1.21.11-4.0

Downloads

64 834

Loaders / Platforms

fabric

Minecraft versions

1.21 1.21.11

Categories

adventure challenging combat

Description

Detailed information

### If u want any Sims added or find a bug pls submit it [here](https://forms.gle/mqZ9E9gNRSc311ES9) ### More Simulators will be added soon.. --- ![Unstable SMP: The LAW](https://cdn.modrinth.com/data/cached_images/5900f25dd38ff46d1e2cde098e1847c735414c4e.jpeg) *Image from [Wemmbu](https://youtu.be/f_aRA-KcTQs)* --- ## 📦 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](https://drive.google.com/drive/folders/1VuqzXQ2GfQ2KQh8VwLnNVEyYNMhkgUxd) All Credits to [MeteorIsaac](https://www.youtube.com/@meteoriteisaac), [Novit PvP Maps](https://www.youtube.com/@NovitPvPMaps19), [solyn](https://www.youtube.com/@solyn1401), and [CarpetSimulators](https://www.youtube.com/@CarpetSimulators) --- ## 🗺️ CarpetPVP Maps (1.21.x & 1.21.11-x) All Credits to _**[CarpetPVPMaps](https://www.youtube.com/@CarpetPVPMaps)**_ and _**[CarpetSimulators](https://www.youtube.com/@CarpetSimulators)**_ | Map | Link | |-----|------| | Unstable SMP Final Law Battle Simulator | [Download](https://www.minecraftmaps.com/52118-unstable-smp-final-law-battle-simulator) | | 2v1000 Law Battle Simulator Unstable SMP | [Download](https://www.minecraftmaps.com/52165-2v1000-law-battle-simulator-unstable-smp) | | Unstable SMP Great Sea Law Battle Simulator | [Download](https://www.minecraftmaps.com/52235-unstable-smp-great-sea-law-battle-simulator-map) | | Unstable SMP Tournament Simulator (FREE) | [Download](https://www.patreon.com/posts/unstable-smp-map-155409813) | | Cindercrest Battle Simulator | — | | Eggchan vs Wemmbu Simulator | [Download](https://www.patreon.com/Carpetpvpmap/posts/unstable-smp-vs-165534671) | | Parrot vs Saps Simulator | [Download](https://www.patreon.com/Carpetpvpmap/posts/unstable-smp-vs-163772542) | | Null prison full | — | > ❌ **Not included due to max file size:** > [Unstable SMP Experience](https://www.patreon.com/posts/unstable-smp-map-156417949) Many of these maps features like mace bot will not work at 1.21.11 🛒 You can buy more maps from [CarpetPVPMaps Patreon](https://www.patreon.com/cw/CarpetPVPMaps) > ⚠️ **You need minimum 18 render distance and simulation distance for these maps to work** --- ## 🧩 Mods | Mod | Category | |-----|----------| | [Fabric API](https://modrinth.com/mod/fabric-api) | Core | | [Carpet](https://modrinth.com/mod/carpet) | Core | | [Modify Player Data](https://modrinth.com/mod/modify-player-data) | Core | | [Carpet crit fix](https://modrinth.com/mod/carpet-crit-fix) | PvP Fix | | [Carpet mace fix](https://modrinth.com/mod/carpet-mace-fix) | PvP Fix | | [Wither Death Sounds](https://modrinth.com/datapack/wither-death-sound) | QoL | | [ukulib](https://modrinth.com/mod/ukulib) | Library | | [uku's Armor HUD](https://modrinth.com/mod/ukus-armor-hud) | QoL | | [BetterHurtCam](https://modrinth.com/mod/betterhurtcam) | QoL | | [Sodium](https://modrinth.com/mod/sodium) | Performance | | [Lithium](https://modrinth.com/mod/lithium) | Performance | | [Alternate Current](https://modrinth.com/mod/alternate-current) | Performance | | [AppleSkin](https://modrinth.com/mod/appleskin) | QoL | | and more.. | — | --- ## 👥 Multiplayer You can use [Essential](https://modrinth.com/mod/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 <iframe width="560" height="315" src="https://www.youtube-nocookie.com/embed/9CYqp5DdcUw" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>

Developer

Hi_Its_I

Profile and data retrieved from Modrinth

Open on Modrinth

Product gallery

Project images

Screenshots and images from the original Modrinth page.

Unstable SMP

Change log

Project versions

Published versions and original Modrinth files.

1.21.11-4.0 Current Release 10.08.2026

added Eggchan vs Wemmbu Simulator and other 2 sims

Supported Minecraft versions
1.21.11
Loaders / Platforms
fabric
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470.49 MB

Vex-1.21.11-6.2 Release 26.07.2026

Fix bot not attacking

Supported Minecraft versions
1.21.11
Loaders / Platforms
fabric
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483.72 MB

Vex-1.21.11-6.1 Release 23.07.2026

Updated Unstable SMP Tournament

Supported Minecraft versions
1.21.11
Loaders / Platforms
fabric
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473.1 MB

Vex-1.21.11-6.0 Release 23.07.2026

Added Theobaldthebird Vs Shoebilly

Supported Minecraft versions
1.21.11
Loaders / Platforms
fabric
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464.68 MB

Vex-1.21.11-5.0 Release 23.07.2026

Added 2 more sims

Supported Minecraft versions
1.21.11
Loaders / Platforms
fabric
Show changes
Added Purgatory Vs Spokeishere Iron, Jadenman Vs Wemmbu Simulator
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499.29 MB

Vex-1.21.11-4.0 Release 22.07.2026

Added 3 more simulator

Supported Minecraft versions
1.21.11
Loaders / Platforms
fabric
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451.6 MB

Vex-1.21.11-3.0 Release 19.07.2026

Added Unstable SMP Tournament V1

Supported Minecraft versions
1.21.11
Loaders / Platforms
fabric
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293.07 MB

Vex-1.21.11-2.0 Release 18.07.2026

Added Ocean Rangers Simulator

Supported Minecraft versions
1.21.11
Loaders / Platforms
fabric
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286.56 MB

Vex-1.21.11-1.1 Release 15.07.2026

Mist Fixed

Supported Minecraft versions
1.21.11
Loaders / Platforms
fabric
Show changes
Fixed: Mist army don't spawn FlameFrags is now harder to kill Flowtives is harder to kill Mistrul is harder to kill
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223.04 MB

Vex-1.21.11-1.0 Release 15.07.2026

new simulators with vexbot!!

Supported Minecraft versions
1.21.11
Loaders / Platforms
fabric
Show changes
credits [MeteorIsaac](https://www.youtube.com/@meteoriteisaac) [Novit PvP Maps](https://www.youtube.com/@NovitPvPMaps19)
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222.44 MB

1.21.11-3.1 Release 24.06.2026

Fix

Supported Minecraft versions
1.21.11
Loaders / Platforms
fabric
Show changes
-Added /trigger lobby -Fixed LettuceK not able to mace in 1.21.11 (apart from carpet crit fix, this map is now fully compatible with 1.21.11) -Upgraded the Orbital Strike Cannon datapack built into the map -Fixed the inability to x-bow normally in older versions -Fixed orbitals not working in newer versions -Law bots now equip a shield when they don't have a totem
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160.96 MB

1.21-3.0 Release 20.06.2026

Added Cindercrest Battle Simulator with some optimization mods

Supported Minecraft versions
1.21
Loaders / Platforms
fabric
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384.27 MB

1.21.11-3.0 Release 20.06.2026

Added Cindercrest Battle Simulator with some optimization mods

Supported Minecraft versions
1.21.11
Loaders / Platforms
fabric
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489.06 MB

1.21.11-2.4 Release 12.06.2026

massively reduces TPS lag

Supported Minecraft versions
1.21.11
Loaders / Platforms
fabric
Show changes
This update massively reduces TPS lag up to 96% reduction. In my case, loading 312 bots before the update took 400ms/tick; after the update, it reduced to 38ms/tick. The bot count has also been increased to a maximum of 416 bots. FPS lag is not affected by the changes.
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343.19 MB

1.21-2.4 Release 12.06.2026

massively reduces TPS lag

Supported Minecraft versions
1.21
Loaders / Platforms
fabric
Show changes
This update massively reduces TPS lag up to 96% reduction. In my case, loading 312 bots before the update took 400ms/tick; after the update, it reduced to 38ms/tick. The bot count has also been increased to a maximum of 416 bots. FPS lag is not affected by the changes.
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343.2 MB

1.21-2.3 Release 15.04.2026

optimize Unstable SMP Tournament

Supported Minecraft versions
1.21
Loaders / Platforms
fabric
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330.42 MB

1.21.11-2.1 Release 15.04.2026

optimized Unstable SMP Tournament

Supported Minecraft versions
1.21.11
Loaders / Platforms
fabric
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330.42 MB

1.21-2.2 Release 15.04.2026

updated Great Sea Law Battle and Final Law Battle

Supported Minecraft versions
1.21
Loaders / Platforms
fabric
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330.42 MB

1.21.11-2.0 Release 15.04.2026

Updated for 1.21.11

Supported Minecraft versions
1.21.11
Loaders / Platforms
fabric
Show changes
some features will not work with 1.21.11
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330.42 MB

1.21-2.1 Release 13.04.2026

Fixed lags

Supported Minecraft versions
1.21
Loaders / Platforms
fabric
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330.42 MB

1.21-2.0 Release 12.04.2026

ADDED Unstable SMP Tournament Simulator Map FREE Version

Supported Minecraft versions
1.21
Loaders / Platforms
fabric
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330.37 MB

1.0 Release 11.04.2026

Unstable Simulator Pack 1.0.0

Supported Minecraft versions
1.21
Loaders / Platforms
fabric
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291.18 MB

1.0 Release 11.04.2026

Unstable Simulator Pack 1.21.11

Supported Minecraft versions
1.21.11
Loaders / Platforms
fabric
Show changes
Some features will not work at 1.21.11
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291.22 MB