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Data Packs
Custom old world in new

Custom old world in new

DATA PACK
A resourcepack with only a data folder.
by djromrell
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66 downloads
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Updated Oct 14, 2026
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Adventure Miscellaneous Utility
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Features:

  1. Reintroduce customized 1.12.2 settings (It exposes all familiar settings)
  2. Can be integrated into existing worlds and data-driven worldgen workflows
  3. Somewhat user-friendly configuration Impacts to user: Provides a text file that shares the easy to configure settings in the json.
data.zip
MC 1.21.6-snapshot, 1.21.5
Release 2025-05-16 Get

Requirements & install

How to use this data pack in Minecraft
Mods needed
None, works in vanilla
Minecraft
1.21.5 – 1.21.6-snapshot
Install folder
saves/<world>/datapacks

How to install data packs

  1. Download the data pack .zip file (do not extract it).
  2. New world: click Data Packs on the world creation screen and drop the .zip in. Existing world: open .minecraft/saves/<world>/datapacks.
  3. Put the .zip into the datapacks folder of the world (servers: world/datapacks).
  4. Run /reload in game (or rejoin the world) and check it with /datapack list.
Browse more: Data Packs for 1.21.6-snapshot All data packs
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