Kirbium

Kirbium

An unobtrusive yet functional QOL modpack.

by notkirb_
72 Downloads
0 Followers
fabricMC 1.21.11lightweightoptimization

Screenshots

In-game
Title Screen
Keybinds
Shaders

About this Modpack

Kirbium Logo

An unobtrusive QOL modpack

Discord link
Website link

Modrinth Downloads
Modrinth Game Versions
Built with Seedpack


Kirbium is an unobtrusive performance and utility modpack. It includes mods that improve performance, and QOL mods like Xaero's WM/MM (MM hidden by default) and Jade. Kirbium focuses on keeping true to the vanilla experience, while making simple interactions easier and faster.

Mods

QOL

Mod Description
AppleSkin Hunger bar improvements
e4mc Let friends outside your network join a LAN server
Elytra Chestplate Swapper Keybind to swap chestplate and elytra
Gamma Utils Fullbright mod
Jade Show a description of what you are looking at
Litematica Schematic mod
Mouse tweaks Makes inventory management easier
Resourceify Download and update resources in-game
Simple Voice Chat In-game proximity voice chat
uku's Armor HUD Shows armor on your hotbar
Zoomify Press C to zoom
Remove Reloading Screen Removes the reloading screen
Shulker Box Tooltip Shows shulker box contents in tooltip

Performance

Mod Description
Sodium Rendering optimizations
Lithium Game optimizations
BadOptimizations Game optimizations
ImmediatelyFast Rendering optimizations
More culling Render culling
FerriteCore Memory optimizations
C2ME Chunk optimizations
Very many players Server optimizations

Graphics

Mod Description
Iris Shader support
Sodium Extra OptiFine-like graphics options
Continuity Continuous textures

Misc

Mod Description
kennytv's epic force close loading screen for Fabric
Litematica Downloader Download schematics
Mod Menu Manage mod configs
OptiGUI OptiFine custom GUIs
Packet Fixer
Puzzle
Reese's Sodium Options Enhanced Sodium Options GUI
spark Performance profiler
WorldEdit Powerful in-game world editor

Kirbium uses a modpack building tool called Seedpack.

Available Versions

Kirbium 1.1.0release
MC 1.21.11fabric27 downloads
January 6, 2026
Kirbium 1.0.0release
MC 1.21.1fabric12 downloads
January 5, 2026
Kirbium 1.0.0release
MC 1.21.5fabric9 downloads
January 5, 2026
Kirbium 1.0.0release
MC 1.21.10fabric11 downloads
January 5, 2026
Kirbium 1.0.0release
MC 1.21.11fabric12 downloads
January 5, 2026

How to Set Up a Kirbium Server

1

Order Server

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

2

Install Modpack in Dashboard

Open the modpack browser in the dashboard, search for "Kirbium" and click "Install". The fabric loader and Minecraft 1.21.11 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

Kirbium 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 Kirbium 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 Kirbium 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.

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

Supported Versions

1.21.111.21.101.21.51.21.1

Start your Kirbium Server now

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

Configure Server →