Copper Extension

Copper Extension

A Simple Mod witch adds rusted copper ingots and more...

by
17.3K Downloads
fabricforgeneoforgequiltgame-mechanicsutility
Rent Server with this Mod

Screenshots

All copper ingot types...
Copper Armor Oxidation

About this Mod

Copper Extension

Copper Extension Banner

About

Copper Extension is a simple Minecraft Mod for Forge and Fabric witch adds a few features to the copper set...

The major feature is the rusty copper ingots. Copper ingots can now be oxidixed in the inventory or even when you dropped it. And also they can be waxed using beehives or honeycombs...

Preview

All copper types
Copper Armor Oxidation

Available Versions

Copper Extension 1.5.1 - Fabricrelease
MC 1.21.11fabric, quilt
April 14, 2026
Copper Extension 1.5.1 - NeoForgerelease
MC 1.21.11neoforge
April 14, 2026
Copper Extension 1.5.0 - NeoForgerelease
MC 1.21.9, 1.21.10neoforge
January 30, 2026
Copper Extension 1.5.0 - Fabricrelease
MC 1.21.9, 1.21.10fabric, quilt
January 4, 2026
Copper Extension 1.4.7 - Fabricrelease
MC 1.21.9, 1.21.10fabric, quilt
October 11, 2025

How to Install Copper Extension on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).

3

Install Mod

Open the mod browser in the dashboard and search for "Copper Extension". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabricforgeneoforgequilt

Minecraft Versions

1.21.11, 1.21.10, 1.21.9 (+13 more)

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Copper Extension server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.11). You can switch loaders with one click in the panel.

Is Copper Extension compatible with fabric and forge and neoforge and quilt?

Copper Extension officially supports fabric, forge, neoforge, quilt for Minecraft 1.21.11, 1.21.10, 1.21.9. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Copper Extension – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Copper Extension consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install Copper Extension with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
Creative Commons Attribution 4.0 International
Server-side
Required

Supported Versions

1.21.111.21.101.21.91.21.81.21.71.21.61.21.51.21.41.21.31.21.2+6 more