Copper Age Backport
by Smallinger
Copper Age Backport carries the Copper Age content of newer releases over to the 1.20.1 and 1.21.1 builds, starting with a golem that was introduced in a community vote.
What it does
Iron Golems can offer flowers to Copper Golems, Copper Chests can transport items between one another, and Copper Buttons press nearby buttons at random. Oxidation runs through four stages, and both the oxidation time and the transport stack size can be set in the config.
Installation needs Fabric API as a required dependency on every loader. The mod is published for Fabric, Forge and NeoForge, with files for 1.20.1 and 1.21.1. The environment is client and server, so players and the server both need it, and the code is released under the MIT License as open source.
Four other catalog mods depend on it: Tricky Trials Backport, Copper Age Backport Durability Fix, Yori3o's Grappling Hooks & Copper Age Backport and Copper Age Backport Duplicate Copper Armor Material Fix. Latest beta builds for 1.20.1 and 1.21.1 were published on 2026-10-03, and the project was first published on 2025-11-17.
Key features
Copper Golem summoning
A carved pumpkin placed on a copper block summons a Copper Golem, which builds on the mob vote design.
Item transport between chests
Copper Chests move items to one another, and the transport stack size can be adjusted in the config.
Random button presses
Copper Buttons press nearby buttons at random, giving copper blocks a passive redstone behavior.
Four oxidation stages
Copper blocks move through four oxidation stages, with the time between stages set by a config option.
Golem flower gifts
Iron Golems can offer flowers to Copper Golems, adding an interaction between the two golem types.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Required by 4 mods
Questions
Does Copper Age Backport need Fabric API?
Does the server need Copper Age Backport?
Which game versions have files?
In the catalog
Copper Age Backport is one of 3,932 Transportation mods on ModsFinder, and one of 2,390 Transportation mods for Fabric. 32,366 mods support Minecraft 1.21.1.
More from Smallinger
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What the author says
A Minecraft mod that brings the complete Copper Age experience to older Minecraft versions. Starting with the beloved Copper Golem from the Minecraft Live 2021 mob vote, this mod adds copper-related blocks, items, and mechanics, including Copper Chests, Buttons, Statues, and the full oxidation system.
Official listing
- Modrinth page
- modrinth.com/mod/backport-copper-age
- Owner
- Smallinger
- Published
- 2025-11-17
- Updated on Modrinth
- 2026-10-03
- Facts verified
- 2026-10-15