
Ultimatum Booster
🌟 Ultimatum Booster, The Ultimate Minecraft Performance Upgrade! ⚡ Say goodbye to lag and hello to buttery-smooth gameplay with Ultimatum Booster, the definitive optimization modpack for Minecraft players who demand maximum performance without sacrifice.
Screenshots

About this Modpack
🌟 Ultimatum Booster – The Ultimate Minecraft Performance Upgrade! ⚡
Say goodbye to lag and hello to butter-smooth gameplay with Ultimatum Booster, the definitive optimization modpack for Minecraft players who demand maximum performance without sacrificing visuals or stability.
Wether you're building massive cities, diving into hardcore PvP, or exploring vast modded worlds, Ultimatum Booster fine-tunes every aspect of your game for lightning-fast load times, higher FPS, and peak responsiveness – all while keeping Minecraft looking stunning.
🚀 Features:
✅ FPS Boost: Quick rendering, smart memory management, and configs that mean smooth frames even on lower-end PCs.
🌍 World Loading Optimization: Faster chunk generation and seamless world transitions.
🧠 Smart Tweaks: Behind-the-scenes improvements that reduce stutters, fix vanilla inefficiencies, and boost CPU/GPU synergy.
🎮 Multiplayer Ready: Perfectly prepared for PvP, SMPs, and high-tickrate servers.
🔧 Powered by:
The best-in-class optimization mods like Sodium, Starlight, Krypton, FerriteCore, and more—curated, tested, and enhanced just for you.
Compatibility-focused tweaks so every frame counts without breaking the Minecraft experience.
💻 Ultimatum Booster isn't just a modpack—it’s a performance revolution.
Built for creators, adventurers, builders, and warriors who want the smoothest, fastest, and most reliable Minecraft experience ever.
Download now. Boost everything.
(Note from creator: This modpack is better than most optimization modpacks, but still, if you want the best performance possible you might have tolower up a bit the settings if youre on a low-end PC)
(We do not hold ourselves responsible by any punishment on servers as long as you use our modpack)
You may:
- ✅ Use this modpack for personal, non-commercial play.
- ✅ Modify it by adding or removing mods for your own use.
You may not:
- ❌ Reupload this modpack or modified versions to Modrinth, CurseForge, or other sites.
- ❌ Include this modpack in public modpack launchers or listings.
- ❌ Use this pack as the base for your own public modpack.
This modpack is licensed under a custom license. Redistribution is strictly prohibited.
Available Versions
How to Set Up a Ultimatum Booster Server
Order Server
Choose at least 4 GB RAM (6 GB recommended for Ultimatum Booster). Based on player count: per 8 players.
Install Modpack in Dashboard
Open the modpack browser in the dashboard, search for "Ultimatum Booster" and click "Install". The fabric loader and Minecraft 1.21.1 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
Ultimatum Booster 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 6 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 Ultimatum Booster server really need?
Minimum 4 GB, recommended 6 GB for stable performance. per 8 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 €8/month).
Can I add custom mods to Ultimatum Booster without conflicts?
Yes, but check compatibility: only use mods for the same loader (fabric) and same Minecraft version (1.21.1). 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.
Ultimatum Booster server lagging – performance tips
1) Increase RAM to 6 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.
Similar Modpacks
Rent Ultimatum Booster Server
Start your own server with automatic modpack installation.
Details
- License
- LicenseRef-Ultimatum-Booster-License
- Server-side
- Optional
- Client-side
- Optional
Supported Versions
Start your Ultimatum Booster Server now
From €8.00/month with 6 GB RAM for the best performance.
Configure Server →