
MegaCLS Modpack
Client-side realism modpack: better audio and performance for Minecraft 1.21.11.
About this Modpack
🛠️ MegaCLS Modpack (v2)
MegaCLS is a client-side modpack that enhances immersion, graphics, and performance in Minecraft – ideal for private multiplayer servers or solo play. Completely rebuilt from the ground up for maximum optimization and feel.
🔍 Features & Highlights
🌿 Immersion & Realism
- AmbientSounds & Sound Physics Remastered: Experience a stunning, dynamic, and realistic 3D audio environment.
- Presence Footsteps: Adds deeply immersive and varied footstep sounds depending on the block you walk on.
- Not Enough Animations & Skin Layers 3D: Enhances third-person visual fidelity with smooth player animations and 3D skin layers.
- ImmersiveUI: Cleans up and enhances the user interface for better game feel.
👁️ Visuals & Quality of Life
- Iris Shaders: Full support for modern, high-performance shaders.
- LambDynamicLights: Real-time dynamic lighting from torches and items in your hand.
- ShulkerBoxTooltip: View the contents of Shulker boxes instantly without placing them down.
- InventoryProfilesNext: Powerful and customizable inventory sorting and management.
- Health Indicators: Easily see the health of mobs and players right above them.
- Head In The Clouds: Smoothly adjusts camera and rendering behavior when building or moving at high altitudes.
⚙️ Ultimate Performance Boost
- Sodium & Sodium Extra: Next-generation rendering engine for massive FPS gains.
- Lithium & FerriteCore: Optimization for physics, chunk loading, and memory (RAM) usage reduction.
- ImmediatelyFast & MoreCulling / EntityCulling: Extreme rendering optimizations for entities and particles.
- BadOptimizations & Dynamic FPS: Smooth gameplay fixes and performance saving when the game is in the background.
💬 Multiplayer & Utility Support
- Simple Voice Chat: Proximity voice chat built right into the game – perfect for interacting with others.
- Chat Heads: Displays player skins next to their chat messages.
- Krypton: Network stack optimizations to reduce lag and improve connection stability on servers.
- Freecam: A useful client-side utility camera to inspect your builds from any angle.
🎮 Technical Info
- Minecraft Version: 1.21.11
- Mod Loader: Fabric
- All mods are client-side only – no server installation needed!
- Works perfectly in single-player and multiplayer.
Built specifically for the MegaCLS server network, but fully usable for general gameplay as well!
ℹ️ More information:
Available Versions
How to Set Up a MegaCLS Modpack Server
Order Server
Choose at least 4 GB RAM (6 GB recommended for MegaCLS Modpack). Based on player count: per 8 players.
Install Modpack in Dashboard
Open the modpack browser in the dashboard, search for "MegaCLS Modpack" 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
MegaCLS Modpack 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 MegaCLS Modpack 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 MegaCLS Modpack 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.
MegaCLS Modpack 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.
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Supported Versions
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From €8.00/month with 6 GB RAM for the best performance.
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