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CB MultipartMinecraft mod for 1.21.1

An opensource library for having multiple things in one block space.

client and servernewest supported release 1.21.1DecorationLibrary
Latest version
3.3.0.159
Minecraft
1.5.2 to 1.21.1
Java
Java 21+
Loaders
NeoForge, Forge
Licence
LGPL-2.1-only
Downloads
172.3k
Updated
7 mo ago
Available on
Modrinth
Space NodeOur hosting

Host CB Multipart servers

One click and CB Multipart is installed with the right loader, on hardware built for it.

  • 1.21.1
  • NeoForge
  • Forge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version CB Multipart declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.20.4Forge, NeoForge17+declared7 Dec 2023
1.20.1Forge, NeoForge17+declared12 Jun 2023
1.19.2NeoForge, Forge17+declared5 Aug 2022
1.18.2NeoForge, Forge17+declared28 Feb 2022
1.16.5Forge, NeoForge8+declared14 Jan 2021
1.15.2NeoForge, Forge8+declared17 Jan 2020
1.12.2NeoForge, Forge8+declared18 Sept 2017
1.11.2NeoForge, Forge8+declared21 Dec 2016
1.10.2Forge, NeoForge8+declared23 Jun 2016
1.7.10NeoForge, Forge8+declared14 May 2014
1.6.4NeoForge, Forgenot publisheddeclared19 Sept 2013
1.5.2NeoForge, Forge8+declared25 Apr 2013

Download

From CB Multipart’s own host. Nothing is re-hosted here.

Browse 43 indexed releases

For Minecraft 1.21.1

Choose the loader you use before downloading.

  • NeoForge

    3.5.0.155 · 1 Dec 2025 · CBMultipart-1.21.1-3.5.0.155.jar

    Get NeoForge

Most recently published release

3.3.0.159release30 Mar 2026

CBMultipart-1.20.1-3.3.0.159-universal.jar · 0.5 MB · for 1.20.1 · Forge, NeoForge

Choose file on publisher ↗
ebbef1b58d67…
Older versions24
  • 3.5.0.1551 Dec 20251.21.10.5 MB18.5k downloads43ba1480586d…Get
  • 3.5.0.15127 May 20251.21.10.5 MB12.0k downloads39fd54180b27…Get
  • 3.5.0.1497 Feb 20251.21.10.5 MB353 downloadsc1f0b9d1ce63…Get
  • 3.5.0.1482 Jan 20251.21.10.5 MB120 downloads472650d7939d…Get
  • 3.4.0.14720 Oct 20241.20.40.5 MB257 downloadsb1df5564c17c…Get
  • 3.3.0.1463 May 20241.20.10.5 MB68.7k downloads223078f12e00…Choose file on publisher ↗
  • 3.3.0.1453 May 20241.20.10.5 MB100 downloads9a43d0e2889a…Get
  • 3.3.0.14429 Apr 20241.20.10.5 MB121 downloadsee1e82797e1a…Choose file on publisher ↗
  • 3.3.0.14326 Apr 20241.20.10.5 MB124 downloads4a0dc249f7a8…Choose file on publisher ↗
  • 3.2.0.1392 Jan 20241.19.20.6 MB2.4k downloads0e24400cb942…Get
  • 3.1.1.1382 Jan 20241.18.20.6 MB1.8k downloads59a07a327d93…Get
  • 3.1.0.1372 Jan 20241.18.20.6 MB252 downloads0af989b4401b…Get
  • 3.1.0.1362 Jan 20241.18.20.6 MB89 downloads18bfc574e429…Get
  • 3.0.4.1232 Jan 20241.16.50.9 MB4.6k downloads7c12e9bd67ce…Get
  • 3.0.3.1222 Jan 20241.16.50.9 MB1.2k downloadsef38ff045562…Get
  • 3.0.3.1212 Jan 20241.16.50.9 MB78 downloadsb10e6ff34fba…Get
  • 3.0.2.1202 Jan 20241.16.50.8 MB88 downloads2b4197d966ef…Get
  • 3.0.2.1192 Jan 20241.16.50.8 MB84 downloadsbbf4c393e6ec…Get
  • 3.0.1.1172 Jan 20241.16.50.8 MB83 downloadsa2234f60883e…Get
  • 3.0.1.1152 Jan 20241.16.50.8 MB80 downloads61792790f073…Get
  • 3.0.0.1062 Jan 20241.15.20.8 MB98 downloads96f227e5fa62…Get
  • 2.6.2.832 Jan 20241.12.21.2 MB34.2k downloads3737705bec14…Get
  • 2.6.1.812 Jan 20241.12.21.2 MB1.9k downloads9213968ff544…Get
  • 2.6.0.792 Jan 20241.12.21.2 MB281 downloads0b02ca8e6dcc…Get

Frequently asked

Does CB Multipart work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version CB Multipart 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 CB Multipart support?

Everything the author has declared, from 1.5.2 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install CB Multipart on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which platform or loader does CB Multipart support?

NeoForge, Forge. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for CB Multipart?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What licence is CB Multipart under?

LGPL-2.1-only, 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 CB Multipart?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download CB Multipart 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. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

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

BookshelfAn open source library for other mods!GeckoLibA 3D animation library for entities, blocks, items, armor, and more!Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Enchantment DescriptionsAdds in-game descriptions for enchantments to tooltips.

Details from Modrinth, where the author last updated it on 30 Mar 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .