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
Screenshots
About this Modpack
Check out this really cool mcpvp.club simulator by CarpetSimulators
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 and CarpetSimulators
| 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 | — |
| Eggchan vs Wemmbu Simulator | Download |
| Parrot vs Saps Simulator | Download |
| Null prison full | — |
❌ 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
Available Versions
How to Set Up a Unstable SMP Simulator Server
Order Server
Choose at least 6 GB RAM (8 GB recommended for Unstable SMP Simulator). Based on player count: per 5 players.
Install Modpack in Dashboard
Open the modpack browser in the dashboard, search for "Unstable SMP Simulator" and click "Install". The fabric loader and Minecraft 1.21.11 are configured automatically.
Start Server & Play
Start the server – all mods are loaded automatically. Share the server IP with friends and play together!
Frequently Asked Questions
Unstable SMP Simulator server crashes or won't start – what to do?
Most common causes: insufficient RAM or wrong fabric loader. Check latest.log for "OutOfMemoryError" → increase RAM to at least 8 GB. For "Mixin" or "ClassNotFoundException" errors: modpack version and loader don't match. With Mado Hosting, loader and Minecraft version are auto-configured on modpack install – preventing most startup issues.
How much RAM does a Unstable SMP Simulator server really need?
Minimum 6 GB, recommended 8 GB for stable performance. per 5 players. Important: Minecraft modpacks need more RAM than vanilla – plan extra per additional player. With Mado Hosting, you can scale RAM up live at any time without data loss (from €7.800000000000001/month).
Can I add custom mods to Unstable SMP Simulator without conflicts?
Yes, but check compatibility: only use mods for the same loader (fabric) and same Minecraft version (1.21.11). Common issues: ID conflicts with recipe mods and incompatible coremod versions. The Mado dashboard mod browser only shows compatible mods and warns about known conflicts.
Unstable SMP Simulator server lagging – performance tips
1) Increase RAM to 8 GB+. 2) Reduce server view-distance to 8 (server.properties). 3) Pre-generate chunks with the "Chunky" plugin. 4) Use /spark profiler to check which mods consume the most tick time. With Mado Hosting, all servers run on NVMe SSDs with dedicated CPU cores – eliminating hardware as a bottleneck.
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Rent Unstable SMP Simulator Server
Start your own server with automatic modpack installation.
Supported Versions
Start your Unstable SMP Simulator Server now
From €7.80/month; 8 GB RAM is recommended for best performance.
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