ModsJava
copper backport
Java mod listed for Minecraft 1.20. Downloads from the MC Java Mods app on Android.
⬇ Download on Modrinth
Adds something about 1.21 copper without requiring experimental features. Only the server or the host needs to install this mod.在不开启实验性玩法下添加了和1.21铜相关的东西，而且仅需要服务器端或房主安装本mod
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.20.4
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
File checked by MCModsHub
- Ships as copper-1.4.0.jar — drop this file into the mods folder
- Download size: 248 KB
- Download link checked 13 Oct 2026 — working
These come from our own check of the pack file, not from the source page.