CurseForge · Minecraft mod
YouMatter
A standalone UU-Matter mod for Minecraft Forge. Allows you to clone items with an expensive substance called U-Matter.
Quick answer
Which YouMatter release should I use?
youmatter-1.20.1-2.2.2.jar targets 1.20.1, 1.20, 1.20-Snapshot with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is YouMatter 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 youmatter-1.20.1-2.2.2.jar need?
youmatter-1.20.1-2.2.2.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add YouMatter without breaking your instance.
Built for youmatter-1.20.1-2.2.2.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use youmatter-1.20.1-2.2.2.jar. It targets 1.20.1, 1.20, 1.20-Snapshot with Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 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 youmatter-1.20.1-2.2.2.jar. It opens that exact file at the source.
About this project
What does YouMatter add?

YouMatter is a Minecraft (Neo)Forge mod.
You know that fluid called "UU-Matter" from IndustrialCraft2, don't you? Well, here you have it as a standalone mod. I added some quirks that make it slightly less overpowered, such as adding an extra requirement for producing U-Matter.
Why?
IC² is outdated, has many bugs and often is just included in modpacks because of its UU-Matter features. That was the inspiration for creating a standalone mod.
How to use
- Create some U-Matter with a U-Matter Creator, some stabilizer and a lot of power.
- Scan your desired item in the Scanner
- Note: Make sure that there is an Encoder next to the scanner! Also, the scanner will consume your item after scanning.
- Put a thumb drive with enough empty space in the encoder and wait
- Transfer your generated U-Matter to the Replicator
- Put your thumbdrive in the replicator, select your mode (single run or multiple runs) and activate the machine!
- There you go!
Visit the screenshots tab to view some screenshots!
FAQ
Q: How can I get the Portable Black Hole needed for the Creator? A: You can find portable black holes in every chest in end mansions (only in 1.12.2, newer versions have a crafting recipe. By the way, you can just put a black hole in a crafting table and duplicate it!)
Config
YouMatter's Config allows you to set a default required U-Matter amount for the duplication of items and set overrides for special items (e.g. set the required amount for stone lower than default or set it higher than default for diamonds) In order to set the default amount, use the option uMatterPerItem and enter the amount in milibuckets. You can copy the format of the default overrides and change the name of the item and the amount on your own. As of version 1.3, you can create a Black- or Whitelist. You have the option to add items to a list called specialItems. Using the option useAsBlacklist you can decide whether to allow or disallow the Items in specialItems to be duplicated.
Crafting recipes
U-Matter Creator

Scanner

Replicator

Encoder

Thumb drive

Machine Casing

Transistor

Transistor (Raw)

Compute Module

Note: You can use any wooden slabs in this recipe.
Stabilizer Bucket(Shapeless)

Please feel free to leave any constructive feedback and complain about my code or report any bugs so that I can improve this mod further!
For more updates about the mod, feel free to join my discord server.
Project description from CurseForge.
Pick your setup
YouMatter by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21
1 loader build1.20.1
1 loader build1.20-Snapshot
1 loader build1.20
1 loader build1.19.4
1 loader build1.19.1
1 loader build1.19-Snapshot
1 loader build1.19
1 loader build1.18.2
1 loader build1.16.5
1 loader build1.16.4
2 loader buildsShowing the newest 12 of 16 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
YouMatter versions and loaders
[NeoForge] 1.21.1-3.0.0-beta.2 | YouMatter
youmatter-neoforge-1.21.1-3.0.0-beta.2.jar
14 Apr 2026
[NeoForge] 1.21.1-3.0.0-beta.1 | YouMatter
youmatter-neoforge-3.0.0-beta.1.jar
14 Apr 2026
[NeoForge] 1.21.1-3.0.0-alpha.4 | YouMatter
youmatter-neoforge-1.21.1-3.0.0-alpha.4.jar
11 Jun 2025
[NeoForge] 1.21.1-3.0.0-alpha.3 | YouMatter
youmatter-neoforge-1.21.1-3.0.0-alpha.3.jar
8 Jun 2025
[NeoForge] 1.21.1-3.0.0-alpha.2 | YouMatter
youmatter-neoforge-1.21.1-3.0.0-alpha.2.jar
3 Jun 2025
[NeoForge] 1.21.1-3.0.0-alpha.1 | YouMatter
youmatter-neoforge-1.21.1-3.0.0-alpha.1.jar
2 Jun 2025
youmatter-1.20.1-2.2.2.jar
7 Dec 2023
youmatter-1.19.4-2.2.1.jar
1 Apr 2023
youmatter-1.18.2-2.2.0.jar
30 Jul 2022
youmatter-1.19-2.2.0.jar
30 Jul 2022
youmatter-1.16.4-1.16.5-2.2.1.jar
youmatter-1.16.4-2.2.1.jar
5 May 2021
youmatter-1.16.4-2.2.0.jar
2 May 2021
Looking for an older file? The official CurseForge project page is in Resources.
