Compact Machines Mod adds small rooms that exist inside single blocks. This lets you build large and complicated machines without using up a lot of space in your world. Each side of a machine block can move items, fluids, and energy, allowing your hidden room to connect with the outside.

Features:

  • Build complex machines inside special blocks to keep your main world from getting cluttered.
  • Get access to rooms of different sizes, from a small 3x3x3 space to a huge 13x13x13 area.
  • Use tunnels to create connections between the inside of a machine and the outside world.
  • Enter and leave your compact rooms with a special tool called the Personal Shrinking Device.

How to Use:

  1. First, craft a Compact Machine block.
  2. Right-click the block with a Personal Shrinking Device to enter the room inside.
  3. Use the interfaces on the walls to connect your build to the outside.
  4. To leave the room, simply right-click again with the device.

Crafting Recipes:

Blocks and Items:

Compact Machines, 6 sizes

Surround a World Resizing Cube with one of the following materials:

  • Wood gives you a 3x3x3 room
  • Iron, 5x5x5
  • Gold, 7x7x7
  • Obsidian, 9x9x9
  • Diamond, 11x11x11
  • Nether Star, 13x13x13

Compact-Machines-Mod-compact_machine.png

Personal Shrinking Device

Required to enter/leave a block. Don’t lose yours while you are working inside of a machine or you might get trapped.

Compact-Machines-Mod-personal_shrinking_device.png

Quantum Entangler

Use it to link two machines to the same room. They share the same content and buffers. Both machines must be upgraded with a netherstar and must be of the same size. You cannot entangle two used machines, i.e. the target machine must never have been entered before.

Compact-Machines-Mod-quantum_entangler.png

Stuff only required for crafting

You only need these to craft the two things above.

World Resizing Interface

Compact-Machines-Mod-world_resizing_interface.png

World Resizing Cube

Compact-Machines-Mod-world_resizing_cube.png

Atom Shrinking Module

Compact-Machines-Mod-atom_shrinking_module.png

Atom Enlarging Module

Compact-Machines-Mod-atom_enlarging_module.png

Screenshots:

Compact Machines Mod Screenshots 1
A player holds a Personal Shrinking Device while standing in a grassy field
Compact Machines Mod Screenshots 2
Selecting a World Resizing Cube from the Compact Machines creative inventory tab
Compact Machines Mod Screenshots 3
Various colored Compact Machine blocks placed on a beach near the ocean
Compact Machines Mod Screenshots 4
Interior view of a small metallic room within a single block
Compact Machines Mod Screenshots 5
Player holding a Personal Shrinking Device near several colorful Compact Machine blocks
Compact Machines Mod Screenshots 6
Player standing inside a large gray room within a Compact Machine block
Compact Machines Mod Screenshots 7
The user interface of a Compact Machine showing inventory and slots
Compact Machines Mod Screenshots 8
A player holds a Personal Shrinking Device near a Compact Machine block

Compact Machines Mod Download Links

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For Minecraft 1.21.8, 1.21.7, 1.21.6

NeoForge 538 KB May 26, 2026

For Minecraft 1.21.1, 1.21

NeoForge 668 KB May 26, 2026

For Minecraft 1.20.1, 1.20

Forge 663 KB May 26, 2026

For Minecraft 1.19.2

Fabric 2 MB May 26, 2026
Forge 580 KB May 26, 2026

For Minecraft 1.18.2

Forge 580 KB May 26, 2026

For Minecraft 1.16.5

Forge 338 KB May 26, 2026

For Minecraft 1.12.2, 1.12.1, 1.12

For Minecraft 1.7.10

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