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Java Mods

Cristel Lib

A library mod other Minecraft projects depend on for structure spacing configs and conditional runtime datapacks. Fabric, Quilt, and NeoForge builds stay current at 26.2; the Forge port stalled at 1.20.4.

By Cristelknight via Modrinth.

Snowy mountain and frozen ocean terrain generated using Cristel Lib's vanilla structure spacing config
Section
Java Mods
Platform
Java
Checked
Updated
Versions
1.18.2, 1.19.4, 1.20.1, 1.20.4, 1.20.6, 1.21.1, 1.21.8, 1.21.11, 26.1, 26.2
1/3
Snowy mountain and frozen ocean terrain generated using Cristel Lib's vanilla structure spacing config

What Cristel Lib works with.

PlatformJava Edition
LoadersFabric, Forge, NeoForge, Quilt
Minecraft versions1.18.2, 1.19.4, 1.20.1, 1.20.4, 1.20.6, 1.21.1, 1.21.8, 1.21.11, 26.1, 26.2
EnvironmentClient, Server

Cristel Lib is a library mod for Fabric, Quilt, and NeoForge that gives other mods and modpacks a shared way to configure structure spacing and load datapacks at runtime. It does nothing by itself. Install it only when a mod or modpack you use lists it as a required dependency, alongside Fabric API and Cloth Config API.

How to install Cristel Lib

  1. 1.Download the Cristel Lib build for your loader and Minecraft version from its Modrinth page.
  2. 2.Download Fabric API (or Quilt Standard Libraries on Quilt) and Cloth Config API, both required by Cristel Lib.
  3. 3.Drop the cristellib jar and both dependency jars into your mods folder, next to the mod or modpack that needs them.
  4. 4.Repeat on the server as well as the client. Cristel Lib is required on the server side and optional on the client.

Cristel Lib never appears in a mod list on its own. If a mod's Modrinth page lists it as a required dependency and you skip it, that mod will fail to load or throw a missing-dependency error on launch.

Supported loaders and Minecraft versions

Fabric, Quilt, and NeoForge builds are current through 26.2, published July 2026. Forge is a different story: its last build only reaches Minecraft 1.20.4, published in January 2024, and no Forge release has followed since. A modpack that needs Cristel Lib on Forge is capped at that version range.

What the structure config and datapack loader do

The structure config system lets a mod or modpack ship a JSON file that changes the spacing, separation, and salt of vanilla or modded structure sets, or simply switches a structure on or off. The runtime datapack loader reads bundled datapacks from a mod's own files and loads them under conditions, most commonly a check for another mod being present, so a compatibility patch only activates when the mod it targets is actually installed.

Frequently asked questions

Questions about Cristel Lib.

4 questions

How do I install Cristel Lib?

Download the Fabric, Quilt, or NeoForge build that matches your Minecraft version from Cristel Lib's Modrinth page, then place the jar in your mods folder alongside its two required dependencies, Fabric API (or Quilt Standard Libraries) and Cloth Config API. Install it on both the client and server, since Cristel Lib is required server-side and optional on the client.

Does Cristel Lib work with Forge?

Only up to Minecraft 1.20.4. The Forge build was last updated in January 2024, while Fabric, Quilt, and NeoForge builds keep shipping and currently reach 26.2. A modpack that needs Cristel Lib on Forge has to stay on 1.20.4 or older.

What does Cristel Lib actually change in-game?

Nothing by itself. It is a library that lets other mods and modpacks ship JSON configs for structure spacing and separation, plus datapacks that load only when a specific mod is present. Installing Cristel Lib alone has no visible effect until another mod or modpack requires it.

Which mods need Cristel Lib installed?

Any mod or modpack whose author built a structure-spacing config or a conditional datapack on top of it. Check the dependency list on the mod's own page or the modpack's instance notes. If Cristel Lib is listed there, drop this jar in alongside it, or the dependent mod will fail to load.

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