mod
Copper Age BackportMinecraft mod for 1.21.1
A Minecraft mod that brings the complete Copper Age experience to older Minecraft versions.
- Latest version
- 1.20.1-0.1.5.1-pre
- Minecraft
- 1.20.1 to 1.21.1
- Java
- Java 21+
- Loaders
- Fabric, Forge, NeoForge
- Licence
- MIT
- Downloads
- 1.2M
- Updated
- 1 mo ago
- Available on
- Modrinth
Our hostingHost Copper Age Backport servers
One click and Copper Age Backport is installed with the right loader, on hardware built for it.
- 1.21.1
- Fabric
- Forge
- NeoForge
- One click mod install
- Loader matched for you
- Ryzen CPUs
- NVMe SSD
Screenshots
Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.
Minecraft versions
Every version Copper Age Backport declares support for, newest first, with the Java runtime that version needs.
Download
From Copper Age Backport’s own host. Nothing is re-hosted here.
For Minecraft 1.21.1
Choose the loader you use before downloading.
- Get NeoForge
NeoForge
1.21.1-0.1.5.1-pre · 3 Oct 2026 · copperagebackport-neoforge-1.21.1-0.1.5.1-pre.jar
- Choose file on publisher ↗
Fabric, NeoForge
1.21.1-0.1.4 · 1 Dec 2025
Multiple loaders are listed; verify the file before downloading.
- Choose file on publisher ↗
Forge, NeoForge
0.0.9-hotfix1 · 23 Nov 2025
Multiple loaders are listed; verify the file before downloading.
Most recently published release
copperagebackport-forge-1.20.1-0.1.5.1-pre.jar · 2.7 MB · for 1.20.1 · Forge
3735a7717a24…Older versions19Hide older versions
- 1.21.1-0.1.5.1-pre3 Oct 20261.21.12.4 MB
cb8df9de84b1…Get - 1.20.1-0.1.527 Sept 20261.20.12.7 MB
cb524578ecc3…Get - 1.21.1-0.1.527 Sept 20261.21.12.4 MB
23063089646e…Get - 1.20.1-0.1.41 Dec 20251.20.12.7 MB
8acb6abf06d2…Choose file on publisher ↗ - 1.21.1-0.1.41 Dec 20251.21.12.4 MB
16b232857d93…Choose file on publisher ↗ - 1.21.1-0.1.330 Nov 20251.21.12.3 MB
3793c258aa63…Choose file on publisher ↗ - 1.20.1-0.1.330 Nov 20251.20.12.4 MB
73eeec9c87f5…Choose file on publisher ↗ - 1.21.1-0.1.229 Nov 20251.21.11.7 MB
481929a12d1a…Choose file on publisher ↗ - 1.20.1-0.1.229 Nov 20251.20.11.7 MB
8605615144a9…Choose file on publisher ↗ - 1.21.1-0.1.126 Nov 20251.21.11.6 MB
fa8c5eb1ba08…Choose file on publisher ↗ - 1.20.1-0.1.126 Nov 20251.20.11.7 MB
7a67e14c8224…Choose file on publisher ↗ - 1.21.1-0.1.025 Nov 20251.21.11.5 MB
9eeed8f91503…Choose file on publisher ↗ - 1.20.1-0.1.025 Nov 20251.20.11.6 MB
0098b27d4d2d…Choose file on publisher ↗ - 0.0.9-hotfix123 Nov 20251.21.1, 1.20.11.2 MB
21a2ed3902aa…Choose file on publisher ↗ - 0.0.923 Nov 20251.21.1, 1.20.11.2 MB
55db2dc277e6…Choose file on publisher ↗ - 0.0.822 Nov 20251.21.1, 1.20.11.2 MB
4250dcce6767…Choose file on publisher ↗ - 0.0.722 Nov 20251.21.1, 1.20.11.2 MB
12642054ebc3…Choose file on publisher ↗ - 0.0.621 Nov 20251.21.1, 1.20.11.2 MB
3ba8a47e549e…Choose file on publisher ↗ - 0.0.5-hotfix120 Nov 20251.21.11.2 MB
bd578475a6b8…Get
Frequently asked
Does Copper Age Backport work on Minecraft 1.21.1?
Yes. 1.21.1 is the newest Minecraft version Copper Age Backport declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.
Which Minecraft versions does Copper Age Backport support?
Everything the author has declared, from 1.20.1 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.
Do I need to install Copper Age Backport on the client or the server?
Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.
Which platform or loader does Copper Age Backport support?
Fabric, Forge, NeoForge. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.
Which Java version do I need for Copper Age Backport?
Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.
What licence is Copper Age Backport under?
MIT, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.
How do I install Copper Age Backport?
Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.
Where do I download Copper Age Backport safely?
Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.
Works on the same versions
Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.
Used by
1 project lists Copper Age Backport as a required dependency.
Is this information wrong or missing something? .