Helium

Name: Helium
Price: 8 EUR
Author: aarrigg

A lightweight modpack to improve performance and build upon the Minecraft experience.

by aarrigg

772 Downloads

0 Followers

fabricMC 1.21.11lightweightoptimization

Rent Helium Server

Screenshots

About this Modpack

Helium includes a handful of mods to help your Minecraft experience. you can invite players to your singleplayer worlds with Essential, performance improvements, realistic animations with the Fresh Animations resource pack, a fresh UI with Pitch, and more!

Comparison of vanilla Minecraft versus Helium

(if there are any issues please email me at [email protected])

Available Versions

Helium 1.4release

MC 1.21.11fabric208 downloads

January 4, 2026

Helium 1.3.1release

MC 1.21.10fabric62 downloads

November 23, 2025

Helium 1.3release

MC 1.21.4fabric120 downloads

January 2, 2025

Helium 1.2.1release

MC 1.21.4fabric88 downloads

December 24, 2024

Helium 1.2release

MC 1.21.4fabric65 downloads

December 24, 2024

How to Set Up a Helium Server

Order Server

Choose at least 4 GB RAM (6 GB recommended for Helium). Based on player count: per 8 players.

Install Modpack in Dashboard

Open the modpack browser in the dashboard, search for "Helium" 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

Helium 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 Helium 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 Helium 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.

Helium 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.