Planet Helios

Name: Planet Helios
Price: 12 EUR
Author: darkx

Modpack for Planet Helios Server. Optional for Playing Planet Helios Network's Celestia Game Mode!

by darkx

1.4K Downloads

0 Followers

fabricMC 1.21.10adventuremultiplayerquests

Rent Planet Helios Server

Screenshots

About this Modpack

Ever wanted to join HeyImHelios' Minecraft Server?

WELL NOW YOU CAN!

We are now publicly on Modrinth to make a better experience for our players! Now head on over to Planet Helios or even play this pack alone and have a jolly good time!

Complete with active developers and Monthly events you will be overjoyed with the great amount of content you can consume in Planet Helios you will find new Biomes and Mobs every play session.

The modpack includes a Working proximity chat, beautiful lands, more bosses, an updated ender dragon fight, 60+ new biomes including the nether and end there is so much more to explore with Planet Helios...

Server IP: play.planethelios.net

Available Versions

Planet Helios Client Side for Celestiabeta

MC 1.21.10fabric63 downloads

February 22, 2026

How to Set Up a Planet Helios Server

Order Server

Choose at least 6 GB RAM (8 GB recommended for Planet Helios). Based on player count: per 5 players.

Install Modpack in Dashboard

Open the modpack browser in the dashboard, search for "Planet Helios" and click "Install". The fabric loader and Minecraft 1.21.10 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

Planet Helios 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 8 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 Planet Helios server really need?

Minimum 6 GB, recommended 8 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 €12/month).

Can I add custom mods to Planet Helios without conflicts?

Yes, but check compatibility: only use mods for the same loader (fabric) and same Minecraft version (1.21.10). 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.

Planet Helios server lagging – performance tips

1) Increase RAM to 8 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.