
Optimizium
Optimizium is FULLY Optimized modpack with any additions for comfortable gaming experience. Modpack is based on Sodium. Needs JDK 22 for C2M mod.
Screenshots

About this Modpack
Optimizium is Modpack for FULLY Optimization with any things for better gaming experience. If you have potato like PC, you should download it! You can use this modpack as a base for your projects or vanilla, but smoother gaming. Optimizium is tested and guarantees best, without any crashes experience.
This modpack needs JDK 22!
Main mods:
1.Sodium
2.Entity Culling
3.More Culling
4.Indium
5.Concurrent Chunk Managemet
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- Download Java 22 from Oracle
- Install
- Select the Java 22 version in modpack settings.
- Have Fun!
Available Versions
How to Set Up a Optimizium Server
Order Server
Choose at least 4 GB RAM (6 GB recommended for Optimizium). Based on player count: per 8 players.
Install Modpack in Dashboard
Open the modpack browser in the dashboard, search for "Optimizium" 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
Optimizium 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 Optimizium 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 Optimizium 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.
Optimizium 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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Rent Optimizium Server
Start your own server with automatic modpack installation.
Supported Versions
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From €8.00/month with 6 GB RAM for the best performance.
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