ModsFinder

Heavy Core Duplication

by CJRVWilliams

Heavy Core Duplication lets players copy a heavy core through a crafting table, a process that needs repeated interaction with the table.

FabricForgeNeoForgeQuiltServer required, client optionalCreative Commons Attribution Non Commercial Share Alike 4.01.21 – 26.3

What it does

The mod adds a duplication recipe for heavy cores, which are found in trial chambers. Each copy is made at a crafting table in steps that require continued interaction, so the player works through the process rather than crafting it in one click. Server owners install it on the server, and players need nothing extra on their own side, because only the server requires it.

The pack also includes duplication for pottery sherds and two balance changes, Balanced Copper Cutting and CJ's Balanced Woodcutter. Default modded recipes are added to the recipe book, so they show up where players already look. Recipes can be viewed in JEI, and any other recipe viewer can be used in its place.

Files are published for Fabric, Forge, NeoForge and Quilt, and the data pack form is available for server platforms. Builds cover 1.21 – 26.3 across 17 release versions, with snapshot builds published as well. The mod is released under the Creative Commons Attribution Non Commercial Share Alike 4.0 license and is not open source.

Key features

  1. Heavy core duplication

    Heavy cores can be copied at a crafting table through a multi-step recipe that keeps the player engaged.

  2. Pottery sherd duplication

    Pottery sherds can also be duplicated, adding a second source for decorated pottery materials.

  3. Balance tweaks

    Balanced Copper Cutting and CJ's Balanced Woodcutter adjust recipes for copper and wood processing.

  4. Recipe book integration

    Default modded recipes are added to the recipe book, so the new duplication steps appear in the in-game guide.

  5. Recipe viewer choice

    JEI can display the recipes visually, and a different recipe viewer can replace it without changes to the mod.

Compatibility

Latest build for each game version and loader.

26.x5 of 5 versions with builds
26.31.11+mod1.11+mod1.11+mod1.11+mod
26.21.11+mod1.11+mod1.11+mod1.11+mod
26.1.21.11+mod1.11+mod1.11+mod1.11+mod
26.1.11.11+mod1.11+mod1.11+mod1.11+mod
26.11.11+mod1.11+mod1.11+mod1.11+mod
1.21.x12 of 12 versions with builds
1.21.111.11+mod1.11+mod1.11+mod1.11+mod
1.21.101.11+mod1.11+mod1.11+mod1.11+mod
1.21.91.11+mod1.11+mod1.11+mod1.11+mod
1.21.81.6+mod1.6+mod1.6+mod1.6+mod
1.21.71.6+mod1.6+mod1.6+mod1.6+mod
1.21.61.6+mod1.6+mod1.6+mod1.6+mod
1.21.51.6+mod1.6+mod1.6+mod1.6+mod
1.21.41.6+mod1.6+mod1.6+mod1.6+mod
1.21.31.3+mod1.3+mod1.3+mod1.3+mod
1.21.21.3+mod1.3+mod1.3+mod1.3+mod
1.21.11.1+mod1.1+mod1.1+mod1.1+mod
1.211.1+mod1.1+mod1.1+mod1.1+mod
ReleaseBetaAlphaNot available

This mod also publishes snapshot builds. Snapshots are not shown in the matrix.

Use cases

Who it’s for: Survival players who raid trial chambers and server owners who want a controlled way to copy heavy cores and sherds.

How it compares

Full comparison

Craftable Heavy Core is available under the MIT License for 1.21 – 26.2, while Heavy Core Recipe covers 1.21 – 26.3 under All rights reserved. Both are server required with client optional, like this mod, and neither is open source. Sherd Duplication takes a different route, running on client and server for 1.20 – 26.3 under All rights reserved.

ModLoadersGame versionsEnvironmentUpdated
Heavy Core DuplicationFabric, Forge, NeoForge and Quilt1.21 – 26.3Server required, client optional2026-10-03
Craftable Heavy CoreFabric, Forge, NeoForge and Quilt1.21 – 26.2Server required, client optional2026-07-27
Heavy Core RecipeFabric, Forge, NeoForge and Quilt1.21 – 26.3Server required, client optional2026-09-21
Sherd DuplicationFabric, Forge, NeoForge and Quilt1.20 – 26.3Client and server2026-09-28

Questions

Does Heavy Core Duplication need to be installed on the client?

No. Server owners install it, and players can join with or without it.

Which loaders does Heavy Core Duplication support?

Fabric, Forge, NeoForge and Quilt are all supported, and a data pack form is also available for server platforms.

Does Heavy Core Duplication change how recipes are shown?

It adds its recipes to the recipe book and works with JEI, but any recipe viewer that players prefer can be used instead.

In the catalog

Heavy Core Duplication is one of 12,078 Decoration mods on ModsFinder, and one of 6,982 Decoration mods for Fabric. 8,071 mods support Minecraft 26.3.

Decoration mods12,078Fabric modsMods for 26.38,071

More from CJRVWilliams

All projects
(Faster) Happy Ghast Mayhem1.21.6 – 26.2Duplicatable Pottery Sherds1.20 – 26.3CJ's Balanced Woodcutter1.20.3 – 26.3Balanced Copper Cutting1.21 – 26.3No More Enderman Grief1.21.9 – 26.2Quiet Pale Gardens1.21.11

Similar mods

[ETF] Entity Texture Features1.16.5 – 26.3Not Enough Animations1.16.5 – 26.3Continuity1.17.1 – 26.3LambDynamicLights - Dynamic Lights1.16.2 – 26.3Presence Footsteps1.7.10 – 26.3AmbientSounds1.12.2 – 26.3

What the author says

This pack allows heavy cores to be duplicated using a crafting table, while requiring continued interaction with the trial chambers. Have a request? Let me know in the discord!
CJRVWilliams, on the Modrinth page

Official listing

Owner
CJRVWilliams
Published
2024-05-29
Updated on Modrinth
2026-10-03
Facts verified
2026-10-15

Tags

DecorationEquipmentUtility
Open on ModrinthCompare