Optimus

Optimus

A performance modpack with Optifine parity and some visual increments. 26.1.2

by vitorp
2.2K Downloads
0 Followers
fabricMC 26.1.2optimization

About this Modpack

Header: Optimus - A better vanilla experience

Available on Modrinth uilt on Additive

Supported game versions Latest version Supported environment

🛈 New version numbering system starting with 26.1 Starting with 26.1, our version numbering system will change:

New version numbering system, including the major release, the minecraft version and minor release, all in sequence.

⁉️ Why Optimus?

🔥 Blazing fast performance

Optimus is based on Adrenaline, onme of the greatest performance packs available. It greatlty improves minecraft's performance by default, and Optimus goes further to add a few mods not bundled by default

📦 Everything you need is already prepackaged

Just install and go! Optimus provides a great lenght of QoL client-side tweaks, whilst keeping maximum performance.

🧡 Made with love.

Optimus is a passion project, born long before the first public release. I've been building performance modpacks for 7 years (due to tremendous need lol), and Optimus itself was born 3 years ago.

✒️ Good design.

Come on, don't you love the orange arrows?!

❔ Why not just use OptiFine?

OptiFine's methods are and have always been extremaly invasive. This leads to a lot of issues with other mods, and also slows down updates. Also, it doesn't offer the same boost in performance today as it did on older versions, when it was at it's peak.

Parity status for version 5.x:

Click to expand
Feature 1.21.5
Shaders
Dynamic Lights
Zoom
Better Grass
Connected Textures
Custom Item Textures
Custom Entity Models
Capes
Animated Textures
Particle Control
Detail Control
Animation Control
Miscellaneous Toggles
Custom Colors
Custom GUI
Custom Sky
Emissive Blocks
Emissive Entities
Random Entities
Resource pack splash screen

➕ What are the QoL features added?

The list goes on; play to check everything out!

ℹ️ Still unsure?

Check the wiki (coming soon!)

👤 Credits

Resource Packs

Optimus Core features VanillaTweaks;

Mod credits are featured on each version's dependency list.

Available Versions

Optimus 6.2612.4release
MC 26.1.2fabric93 downloads
May 25, 2026
Optimus 6.2612.3 for 26.1.2release
MC 26.1.2fabric323 downloads
May 13, 2026
Optimus 6.2612.2release
MC 26.1.2fabric14 downloads
April 28, 2026
Optimus 6.2612.1release
MC 26.1.2fabric9 downloads
April 19, 2026
Optimus 6.1.2release
MC 1.21.11fabric46 downloads
March 1, 2026

How to Set Up a Optimus Server

1

Order Server

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

2

Install Modpack in Dashboard

Open the modpack browser in the dashboard, search for "Optimus" and click "Install". The fabric loader and Minecraft 26.1.2 are configured automatically.

3

Start Server & Play

Start the server – all mods are loaded automatically. Share the server IP with friends and play together!

Frequently Asked Questions

Optimus 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 Optimus 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 Optimus without conflicts?

Yes, but check compatibility: only use mods for the same loader (fabric) and same Minecraft version (26.1.2). 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.

Optimus 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.

Rent Optimus Server

Start your own server with automatic modpack installation.

Recommended RAM:
6 GB(min. 4 GB)
From 8.00 / month
Create Server Now
1-Click Modpack Install
NVMe SSD Storage
DDoS Protection included
Automatic Backups

Details

License
GNU Lesser General Public License v3.0 only
Server-side
Unsupported
Client-side
Required

Supported Versions

26.1.21.21.111.21.101.21.91.21.81.21.71.21.61.21.51.21.41.21.3+3 more

Start your Optimus Server now

From €8.00/month with 6 GB RAM for the best performance.

Configure Server →