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data pack

Chaos CoreMinecraft data pack for 1.21.11

Amplify your world with enhanced dynamic difficulty. Up for the challenge?

server onlynewest supported 1.21.11AdventureMobsGame Mechanics
Latest version
1.2.2+mod
Minecraft
1.20 to 1.21.11
Works with
NeoForge, Quilt, Forge, Fabric
Licence
MIT
Downloads
8.7k
Updated
15 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Chaos Core servers

Deploy a server with Chaos Core already added to the world, on hardware built for it.

  • 1.21.11
  • Data pack
  • NeoForge
  • Quilt
  • Forge
  • One click install
  • Version matched
  • Automatic backups
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version Chaos Core declares support for, newest first, with the Java runtime that version needs.

Other data packs
MinecraftThroughJavaEvidenceReleased
1.21.11Data pack, NeoForge, Quilt, Forge, Fabric21+declared9 Dec 2025
1.21.10Fabric, Quilt, NeoForge, Forge, Data pack21+declared7 Oct 2025
1.21.9Fabric, Quilt, NeoForge, Forge, Data pack21+declared30 Sept 2025
1.21.8Fabric, Quilt, NeoForge, Forge, Data pack21+declared17 Jul 2025
1.21.7NeoForge, Quilt, Forge, Fabric, Data pack21+declared30 Jun 2025
1.21.6Data pack, Quilt, NeoForge, Forge, Fabric21+declared17 Jun 2025
1.21.5Fabric, Quilt, NeoForge, Forge, Data pack21+declared25 Mar 2025
1.21.4Fabric, Quilt, NeoForge, Forge, Data pack21+declared3 Dec 2024
1.21.3Forge, Quilt, Data pack, NeoForge, Fabric21+declared23 Oct 2024
1.21.2Forge, Data pack, Fabric, NeoForge, Quilt21+declared22 Oct 2024
1.21.1Data pack, Quilt, NeoForge, Forge, Fabric21+declared8 Aug 2024
1.21Fabric, Quilt, NeoForge, Forge, Data pack21+declared13 Jun 2024
1.20.6Fabric, Quilt, NeoForge, Forge, Data pack21+declared29 Apr 2024
1.20.5Fabric, Quilt, NeoForge, Forge, Data pack21+declared23 Apr 2024
1.20.4NeoForge, Quilt, Forge, Fabric, Data pack17+declared7 Dec 2023
1.20.3Data pack, Quilt, NeoForge, Forge, Fabric17+declared4 Dec 2023
1.20.2Fabric, Quilt, NeoForge, Forge, Data pack17+declared20 Sept 2023
1.20.1Fabric, Quilt, NeoForge, Forge, Data pack17+declared12 Jun 2023
1.20Forge, Quilt, Data pack, NeoForge, Fabric17+declared2 Jun 2023

Download

From Chaos Core’s own host. Nothing is re-hosted here.

1.2.2+modrelease20 Jun 2025

chaos-core-1.2.2.jar · 1.2 MB · for 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9 +2 more

Download latest
83e87bfa008e…
Older versions22
  • 1.2.220 Jun 20251.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9 +2 more0.5 MB439 downloads54825ecd8c53…Get
  • 1.2.1+mod25 Mar 20251.21.51.2 MB2.1k downloads82810808e959…Get
  • 1.2.125 Mar 20251.21.50.5 MB164 downloadse8277a1fa3fd…Get
  • 1.2.0+mod8 Feb 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.41.2 MB64 downloadsb3a111260cdf…Get
  • 1.2.08 Feb 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.5 MB23 downloads258d78da9f38…Get
  • 1.1.3+mod3 Feb 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.41.1 MB104 downloadsde4491dea252…Get
  • 1.1.33 Feb 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.5 MB33 downloads45c7cf6a0d39…Get
  • 1.1.2+mod1 Feb 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.41.1 MB73 downloads88db5aef9476…Get
  • 1.1.21 Feb 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.5 MB13 downloads0e55dc5fed0c…Get
  • 1.1.1+mod26 Jan 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.41.1 MB108 downloads86e102bb8d7d…Get
  • 1.1.126 Jan 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.5 MB20 downloadsdb86e3d8b9ba…Get
  • 1.1.0+mod20 Jan 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.41.1 MB79 downloadsba79c82c16d3…Get
  • 1.1.020 Jan 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.5 MB24 downloads99934a5e255d…Get
  • 1.0.6+mod20 Jan 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.41.1 MB54 downloads0a0f12daef02…Get
  • 1.0.620 Jan 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.5 MB19 downloads94a65dec6b56…Get
  • 1.0.5+mod17 Jan 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.41.1 MB58 downloads23e9cb1a4ba6…Get
  • 1.0.517 Jan 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.5 MB22 downloads73472bba0e1b…Get
  • 1.0.4+mod15 Jan 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.6 MB70 downloadse5938cf700aa…Get
  • 1.0.415 Jan 20251.21, 1.21.1, 1.21.2, 1.21.3, 1.21.40.2 MB26 downloads848d773fa865…Get
  • 1.0.214 Jan 20251.21, 1.21.40.2 MB28 downloadsdd4aee2286fc…Get
  • 1.0.113 Jan 20251.20, 1.20.4, 1.20.60.2 MB23 downloads4fee759b5910…Get
  • 1.0.013 Jan 20251.20, 1.20.40.2 MB21 downloads39d92854fa71…Get

Frequently asked

Does Chaos Core work on Minecraft 1.21.11?

Yes. 1.21.11 is the newest Minecraft version Chaos Core declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does Chaos Core support?

Everything the author has declared, from 1.20 up to 1.21.11. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Chaos Core on the client or the server?

The server only. Players join with an ordinary Minecraft client and install nothing.

What licence is Chaos Core under?

MIT, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install Chaos Core?

Data packs install per world: put the downloaded file in that world's datapacks folder and run /reload, or add it when creating the world. No loader is involved. On a server, the world folder lives next to the server jar.

Where do I download Chaos Core safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

TerralithExplore almost 100 new biomes consisting of both realism and light fantasy, using just Vanilla blocks. Complete with several immersive structures to compliment the overhauled terrain.Towns and TowersSpice up your world with new villages, pillager outposts, and even new ships!TectonicTerrain shaping brought to new heights, grander and more varied than ever before!Incendium LegacyA nether biome overhaul combined with challenging structures to conquer, unique weapons to obtain, and tricky mobs to defeat.GeophilicA subtle-ish overhaul of vanilla Overworld biomes! Reworked!TrekBored of vanilla structure generation? This pack is for you!

Last checked 2 mo ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .