
UltraLight
The Modpack for any PC, even a potato-grade PC can run this!
About this Modpack
🔷 UltraLight – Optimized Minecraft With Built-in Shaders
Minecraft Versions Supported: 1.20.1 to 1.21.x
Modloader: Fabric
Style: Performance + Visuals
Mods Included: 16 handpicked lightweight enhancements
Pre-installed Shader Support: ✅
UltraLight is a lightweight optimization modpack that boosts your Minecraft FPS while keeping the game visually stunning — yes, shaders included by default.
Whether you're running on a potato or just hate lag, UltraLight gives you blazing-fast performance, clean visuals, and zero fluff. It's the perfect base for casual play, long-term survival, or building worlds that look good and run great.
⚙️ Core Features
🚀 ModernFix, Sodium, Lithium, FerriteCore, ImmediatelyFast: Cut RAM usage, boost FPS and eliminate lag spikes.
💨 FastQuit & Remove Reloading Screen: Spend less time waiting and more time playing.
👁 Iris Shaders + Entity Culling: Gorgeous shader support without melting your system. Visual clarity meets peak performance.
🧩 AppleSkin, Not Enough Crashes, Mod Menu: QOL tools for smarter, safer gameplay.
🔧 Cloth Config & Fabric API: Smooth configuration support.
🎨 EMF & ETF: Upgrade entity visuals with HD skin and model support — no performance hit.
👥 Essential Mod: Easy multiplayer and friends list system — no server needed.
📦 What You Get
A clean, minimal modpack that runs like vanilla — but better
Built-in shader support with Iris (includes preconfigured shaderpacks)
Full multi-version support (1.20.1–1.21.x instances)
Under 50MB total mod size
Perfect base for SMP or solo survival
Easy to build on top of — add your own mods and still keep things fast
UltraLight is your "install-and-go" optimization pack. No configs to mess with. No bloated extras. Just beautiful, fast Minecraft.
WARNING: Not all mods listed here are in all versions
Available Versions
How to Set Up a UltraLight Server
Order Server
Choose at least 4 GB RAM (6 GB recommended for UltraLight). Based on player count: per 8 players.
Install Modpack in Dashboard
Open the modpack browser in the dashboard, search for "UltraLight" and click "Install". The fabric loader and Minecraft 1.21.7 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
UltraLight 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 UltraLight 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 UltraLight without conflicts?
Yes, but check compatibility: only use mods for the same loader (fabric) and same Minecraft version (1.21.7). 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.
UltraLight 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.
Rent UltraLight Server
Start your own server with automatic modpack installation.
Details
- License
- LicenseRef-NovanceModding-Modpack-License
- Server-side
- Unsupported
- Client-side
- Required
Supported Versions
Start your UltraLight Server now
From €8.00/month with 6 GB RAM for the best performance.
Configure Server →