CurseForge · Minecraft mod
Compact Expansion
adds new, bigger Compact Machines
Quick answer
Which Compact Expansion release should I use?
Compact Expansion compactexpansion-1.21.1_1.4.0.jar targets 1.21.1 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. All 1 required mods have matching files.
Where it goes
Is Compact Expansion required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Compact Expansion compactexpansion-1.21.1_1.4.0.jar need?
compactexpansion-1.21.1_1.4.0.jar. Change the file and its required mods may change too.
Install Compact Machines first. We found matching files for this game-version and loader setup.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Compact Expansion without breaking your instance.
Built for Compact Expansion compactexpansion-1.21.1_1.4.0.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use compactexpansion-1.21.1_1.4.0.jar. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Compact Machines first. We found matching files for this game-version and loader setup.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside compactexpansion-1.21.1_1.4.0.jar. It opens that exact file at the source.
About this project
What does Compact Expansion add?
Compact Expansion
This mod adds bigger Compact Machines.
Note that creating bigger machines might take a while!
For Minecraft 1.21.1
With the addition of the RoomTemplate system by Compact Machines, it is now possible to create datapack based room sizes. This mod extends the maximum size set by the base mod from 45 to 255. It also includes these basic templates:
- 7*7*7 (Single)
- 15*15*15 (Double)
- 31*31*31 (Triple)
- 63*63*63 (Quadruple)
- 127*127*127 (Quintuple)
- 255*255*255 (Sextuple)
For Minecraft 1.19.2 and 1.20.1
The exisiting machine sizes get replaced!
New sizes:
- 7*7*7 (Tiny)
- 15*15*15 (Small)
- 31*31*31 (Normal)
- 63*63*63 (Large)
- 127*127*127 (Giant)
- 255*255*255 (Maximum)
Project description from CurseForge.
Pick your setup
Compact Expansion by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.1
1 loader build1.20.1
1 loader build1.19.2
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Compact Expansion versions and loaders
compactexpansion-1.21.1_1.4.0.jar
13 Mar 2026
compactexpansion-1.20.1_1.3.1.jar
15 Oct 2025
compactexpansion-1.20.1_1.3.0.jar
21 Apr 2025
compactexpansion-1.20.1_1.2.0.jar
28 Mar 2025
compactexpansion-1.20.1_1.1.0.jar
27 Jan 2025
compactexpansion-1.19.2_1.0.0.jar
28 Jul 2023
Looking for an older file? The official CurseForge project page is in Resources.