OptiEarth

Name: OptiEarth
Price: 8 EUR
Author: ertomy

The best optimization modpack for minecraft 1.21.

by ertomy

512 Downloads

0 Followers

fabricMC 1.21.6lightweightoptimization

Rent OptiEarth Server

Screenshots

About this Modpack

OptiEarth is the lightest and smoothest Fabric modpack ever.

All the best optimization mods put together and set for maximum performance.

Offers:

Extreme FPS boost;
Fast loading for singleplayer worlds;
More advanced and faster language menu;
Basilar zoom mod;
In-game fps counter and much more!

FPS boost:

FPS Boost:
Tested on my own AMD RX 580 Series, AMD Ryzen 5 2600.

Available Versions

OptiEarth 1.0.3 (1.21.6)release

MC 1.21.6fabric193 downloads

July 6, 2025

OptiEarth 1.0.2 (1.21.5)release

MC 1.21.5fabric57 downloads

May 28, 2025

OptiEarth 1.0.1 (1.21)release

MC 1.21fabric146 downloads

September 22, 2024

OptiEarth 1.0.0 (1.21)release

MC 1.21fabric114 downloads

July 21, 2024

How to Set Up a OptiEarth Server

Order Server

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

Install Modpack in Dashboard

Open the modpack browser in the dashboard, search for "OptiEarth" and click "Install". The fabric loader and Minecraft 1.21.6 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

OptiEarth 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 OptiEarth 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 OptiEarth without conflicts?

Yes, but check compatibility: only use mods for the same loader (fabric) and same Minecraft version (1.21.6). 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.

OptiEarth 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.