DatapacksJava
CU later
My take on a datapack that replaces redstone component's iron with copper (and some other tweaks). Free Minecraft Java datapack for 1.21.2, 1.21.3, 1.21.4.
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.
Been wanting to give copper a more meaningful purpose? with this pack all blocks that are considered "redstone components" have copper in their recipes
recipes that has been changed:
- rails (most types), hoppers, tripwire hook and pistons: requires copper ingots instead of iron
- powered rails: requires 4 copper ingots and 2 gold ingots
- crafters: still need some iron for its recipe
there is also a resourcepack build in to reflect the changes
(high chance that this most likely can cause some conflicts and compatiblity issues)
Verified by MCModsHub
- Downloads as culaterredstone 1.0.0 (1.21-.8).zip
- Download size: 26 KB
- Download link checked 31 Aug 2026 — working
These come from our own check of the pack file, not from the source page.