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Create: Re-Packager Fix

by SOLR98

Create: Re-Packager Fix is a server-side patch for Create that closes a duplication exploit in the Re-Packager block, and only that exploit.

ForgeNeoForgeServer-side onlyMIT LicenseOpen source1.20.1 – 1.21.1

What it does

The mod changes PackageRepackageHelper.repackBasedOnRecipes through a Mixin. Before any material is consumed, a two-phase check confirms that every recipe ingredient is present in the inventory with an exact NBT match. Only after the whole round is confirmed does the patch remove the materials in one uniform deduction. If anything is missing, the round is aborted and nothing is taken from the player.

The original code could generate a package entry with a quantity of zero when the inventory could not support even one craft, and the packager still ejected a physical package that held a full copy of the recipe materials, which allowed those materials to be duplicated. A zero-count guard now stops that path. Normal packaging and re-packaging with sufficient stock, multi-recipe orders and returned materials keep vanilla behavior.

Create: Re-Packager Fix needs Create. It is published for Forge and NeoForge with files for 1.20.1 and 1.21.1, and it runs on the server alone, so clients join without installing it. The code is released under the MIT License and is open source.

Key features

  1. Two-phase validation

    The patch verifies every recipe material before removing any of them, so a failed round leaves the inventory untouched.

  2. Zero-count guard

    A package with a quantity of zero is never generated, which closes the route that produced copies of recipe materials.

  3. Partial consumption prevented

    Materials a player has already invested are no longer lost when an order cannot be fully fulfilled.

  4. Targeted Mixin patch

    The change applies only to the recipe-based re-packaging method, leaving other packaging logic as it was.

Compatibility

Latest build for each game version and loader.

1.21.1Not available1.1.0
1.20.11.1.0Not available
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 1

CreateAesthetic Technology that empowers the Player
Required

Questions

Does Create: Re-Packager Fix need Create installed?

Yes. Create is the required dependency, and the patch changes its Re-Packager logic, so Create must be present on the server.

Do players need to install Create: Re-Packager Fix?

No. It runs on the server alone, so players need nothing extra to join.

Which game versions have files?

Files exist for 1.20.1 on Forge and for 1.21.1 on NeoForge, both with version 1.1.0 released on 2026-09-12.

More from SOLR98

All projects
beyond:Cmd-Extension1.20.1Beyond:Integration1.20.1 – 1.21.1

What the author says

A server-side fix mod for Create that patches a duplication exploit in the Re-Packager. When a fragmented package carries insufficient inventory to fulfill the crafting recipes of its order, the Re-Packager still generates a package entry with a quantity of 0 — which the packager's output logic then ejects as a real…
SOLR98, on the Modrinth page

Official listing

Owner
SOLR98
Published
2026-08-08
Updated on Modrinth
2026-09-12
Facts verified
2026-10-15
Open on ModrinthCompare