CurseForge · Minecraft mod
Modulus Core
The core-library mod for Chappie's mods
Quick answer
Which Modulus Core release should I use?
Modulus Core modulus-neoforge-1.21.1-1.0.0.jar targets 1.21.1 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is Modulus Core 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 Modulus Core modulus-neoforge-1.21.1-1.0.0.jar need?
modulus-neoforge-1.21.1-1.0.0.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 Modulus Core without breaking your instance.
Built for Modulus Core modulus-neoforge-1.21.1-1.0.0.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use modulus-neoforge-1.21.1-1.0.0.jar. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
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 modulus-neoforge-1.21.1-1.0.0.jar. It opens that exact file at the source.
About this project
What does Modulus Core add?

The core mod for my mods
Modulus is a universal core for Minecraft that adds a new system of superpowers, animations and events to the game, increasing the interactivity and dynamics of the gameplay. The core is suitable for use in mods as well as for creating your own mechanics with superpowers.
⭐ More Content ⭐
Project description from CurseForge.
Pick your setup
Modulus Core by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.9
1 loader build1.21.4
1 loader build1.21.1
2 loader builds1.20.4
1 loader build1.20.1
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Modulus Core versions and loaders
modulus-neoforge-1.21.1-1.0.0.jar
29 Jun 2026
modulus-1.21.10-1.0.1.jar
2 Jun 2026
modulus-1.21.10-1.0.0.jar
1 Jun 2026
modulus-1.21.4-1.0.0.jar
26 Oct 2025
modulus-1.21.1-1.0.0.jar
17 Sept 2025
modulus-1.20.1-1.0.jar
6 Sept 2025
modulus-1.0.0.jar
22 Dec 2024
Looking for an older file? The official CurseForge project page is in Resources.
