How do I install Universal Mod Core?

Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. Download the .jar. Put it in the .minecraft/mods folder and launch that loader profile. Opens on CurseForge — not every file is mirrored on our own servers.

What Minecraft version does Universal Mod Core work with?

The listing gives Minecraft 1.21.1, 1.20.1, 1.19.4, among others. This is the version stated by the author or source site, not something we verified ourselves.

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Universal Mod Core

Java mod listed for Minecraft 1.16–1.21. Downloads from the MC Java Mods app on Android.

by cam72cam · on CurseForge

Which build do you need?

This mod ships a separate file for every mod loader and every version of the game. Pick both, then download — the wrong build installs fine and then does nothing in the game.

Mod loader

Mod loader NeoForge1 build
Mod loader Forge6 builds

Minecraft version

Minecraft 1.21.1Newest

Minecraft 1.20.1Newest
Minecraft 1.19.4
Minecraft 1.18.2
Minecraft 1.17.1
Minecraft 1.16.5
Minecraft 1.16.4

⬇ Download for 1.21.1 · NeoForge ⬇ Download for 1.20.1 · Forge ⬇ Download for 1.19.4 · Forge ⬇ Download for 1.18.2 · Forge ⬇ Download for 1.17.1 · Forge ⬇ Download for 1.16.5 · Forge ⬇ Download for 1.16.4 · Forge

I don't know my version or loader

Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.

No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.

Open in MC Java Mods Get it on Google Play →

Welcome to the Future

Universal Mod Core allows developers to build mods against a stable API that is Minecraft agnostic.

In the past UMC has been packaged directly with ImmersiveRailroading as it is was the only mod using it. Now that the API is reasonably stable, it can be published as it's own mod. This mod contains the logic for each Minecraft Version / Loader that it exposes in a simplified way to child mods.

TODO:
* Support for fabric
* Example project repo
* Contributing guide

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.21.1, 1.20.1, 1.19.4
How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

File checked by MCModsHub

Ships as UniversalModCore-1.12.2-forge-1.0.1.jar — drop this file into the mods folder
Download size: 408 KB
Download link checked 7 Oct 2026 — working

These come from our own check of the pack file, not from the source page.

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