QuantuMiz: Competitive Edition

QuantuMiz: Competitive Edition

Your friendly competitive PvP modpack, aiming to be open-source alternative of PvP clients!

by RoonMoonlight
10.2K Downloads
0 Followers
fabricMC 26.1.2combatlightweightoptimization

Screenshots

Default Interface for QuantuMiz CE
Everything is configurable

About this Modpack

QuantuMiz: Competitive Edition

Your friendly competitive PvP modpack, aiming to be open-source alternative of PvP clients!

Download · Issue Tracker · Source Code


QuantuMiz: Competitive Edition (Formerly known as Kosmos) is the second deriative of QuantuMiz project, aiming to be PvP-focused competitive modpack for Minecraft: Java Edition, powered by several FOSS mods.

Changelog

See here.

Features

  • Included several PvP features seen on PvP client, such as FPS, Ping, Keystrokes, Zoom, ArmorStatus/Item Status, Custom Crosshairs, and many more to come!
  • Optimization powered by QuantuMiz, which includes several optimization mods with the power of open-source.
  • Partial compatibility of OptiFine features such as Connected Textures and Shaders!
  • Unlike other modpacks, this modpack is designed with Fair-play in mind for most of community servers, all mods present are cherry-picked carefully to comply with most of server rules, including popular server such as Hypixel.
  • 100% community-made, free and open-source! All mod's source code are available on their respective GitHub page.

List of mods

List of mods can be found here.

Using this modpack on your livestream/contents

You are free to use this modpack on livestream and contents as this modpack is MIT License! But I would be grateful if you leave a link to this modpack.

Thank you for supporting this modpack project!

Available Versions

4.0.1 for MC 26.1.2release
MC 26.1.2fabric30 downloads
June 5, 2026
4.0.0 for MC 26.1.2release
MC 26.1.2fabric38 downloads
May 25, 2026
3.5.5 for MC 1.21.11release
MC 1.21.11fabric120 downloads
March 26, 2026
3.5.4 for MC 1.21.11release
MC 1.21.11fabric55 downloads
March 12, 2026
3.5.3 for MC 1.21.11release
MC 1.21.11fabric97 downloads
February 12, 2026

How to Set Up a QuantuMiz: Competitive Edition Server

1

Order Server

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

2

Install Modpack in Dashboard

Open the modpack browser in the dashboard, search for "QuantuMiz: Competitive Edition" 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

QuantuMiz: Competitive Edition 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 QuantuMiz: Competitive Edition 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 QuantuMiz: Competitive Edition 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.

QuantuMiz: Competitive Edition 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 QuantuMiz: Competitive Edition 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
MIT License
Server-side
Optional
Client-side
Required

Supported Versions

26.1.226.1.11.21.111.21.81.21.71.21.61.21.51.21.41.21.31.21.1+7 more

Start your QuantuMiz: Competitive Edition Server now

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

Configure Server →