
Smallifium NeoForge
A fork of my other optimization modpack Simplifium that removes all of the QoF mods and just leaves the actual optimization mods.
Screenshots

About this Modpack
Also available for https://modrinth.com/modpack/smallifium
What is Smallifium?
This is a fork of my other optimization modpack Simplifium that removes all of the QoF and just leaves the optimization mods.
Why should I use Smallifium?
Performance
This modpack highly increases performance using mods like Sodium, Lithium, Entity Culling, FerriteCore, and more!
Easy to play
Install the modpack, launch it, create a world and you're ready to play without even touching the settings.
Quick support for new versions
Small amount of mods=Not having to wait a lot for all of them to be updated=Not having to wait a lot for the modpack to be updated.
Fully client-side
This mod only uses client-side mods, which means when you have the modpack installed you can join servers, and since there aren't any mods that give you advantages (like zoom, fullbright or freecam) you can join basically every server and not get banned because of your mods.
Lightweight
This modpack optimizes your game so well using just 15 mods.
Older versions and NeoForge support
The only older version and other mod loader planned support is for 1.21.1 NeoForge, the version-mod loader with the most mods.
Can I use this as a base for my own modpack?
Sure! Just give credits and don't just reupload the modpack without changing anything or with changing it just a little bit (Don't just add a few mods, make a big change to the modpack).
Credits
A huge thanks to all the mod creators who made this possible. You can find the specific mod list and links to their respective pages by checking any release in the Versions tab.
Thank you for downloading and supporting Smallifium!
By the way if you have any suggestions or found a bug create an issue here.
Available Versions
How to Set Up a Smallifium NeoForge Server
Order Server
Choose at least 4 GB RAM (6 GB recommended for Smallifium NeoForge). Based on player count: per 5 players.
Install Modpack in Dashboard
Open the modpack browser in the dashboard, search for "Smallifium NeoForge" and click "Install". The neoforge 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
Smallifium NeoForge server crashes or won't start – what to do?
Most common causes: insufficient RAM or wrong neoforge 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 Smallifium NeoForge server really need?
Minimum 4 GB, recommended 6 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 €8/month).
Can I add custom mods to Smallifium NeoForge without conflicts?
Yes, but check compatibility: only use mods for the same loader (neoforge) 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.
Smallifium NeoForge 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 Smallifium NeoForge Server
Start your own server with automatic modpack installation.
Supported Versions
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