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Compact ExpansionMinecraft mod for 1.21.1

adds new, bigger Compact Machines

newest supported release 1.21.1TechnologyStorageMc AddonsTechnology Processing
Latest version
compactexpansion-1.20.1_1.3.2.jar
Minecraft
1.19.2 to 1.21.1
Java
Java 21+
Loaders
Forge, NeoForge
Licence
not stated
Downloads
179.7k
Updated
29 d ago
Available on
CurseForge

Screenshots

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

Minecraft versions

Every version Compact Expansion declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Forge, NeoForge21+declared8 Aug 2024
1.20.1Forge, NeoForge17+declared12 Jun 2023
1.19.2Forge, NeoForge17+declared5 Aug 2022

Download

From Compact Expansion’s own host. Nothing is re-hosted here.

For Minecraft 1.21.1

Choose the loader you use before downloading.

  • NeoForge

    compactexpansion-1.21.1_1.4.0.jar · 13 Mar 2026 · compactexpansion-1.21.1_1.4.0.jar

    Get NeoForge

Most recently published release

compactexpansion-1.20.1_1.3.2.jarrelease10 Oct 2026

compactexpansion-1.20.1_1.3.2.jar · 16 KB · for 1.20.1 · Forge

Download this release
23db959ef948…
Older versions6
  • compactexpansion-1.21.1_1.4.0.jar13 Mar 20261.21.123 KB1b04f38de4e0…Get
  • compactexpansion-1.20.1_1.3.1.jar15 Oct 20251.20.114 KBefc3d39f232a…Get
  • compactexpansion-1.20.1_1.3.0.jar21 Apr 20251.20.19 KB77e88e9a85a6…Get
  • compactexpansion-1.20.1_1.2.0.jar28 Mar 20251.20.19 KBa295e077f095…Get
  • compactexpansion-1.20.1_1.1.0.jar27 Jan 20251.20.18 KB355be8fcea55…Get
  • compactexpansion-1.19.2_1.0.0.jar28 Jul 20231.19.29 KBb33a5647446d…Get

Frequently asked

Does Compact Expansion work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Compact Expansion 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 Compact Expansion support?

Everything the author has declared, from 1.19.2 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does Compact Expansion support?

Forge, NeoForge. 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 Compact Expansion?

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.

How do I install Compact Expansion?

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 Compact Expansion safely?

Start with the author's page on CurseForge, 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.

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Details from CurseForge, where the author last updated it on 10 Oct 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? .