CurseForge · Minecraft mod
Negative Mass
This is a lightweight mod replication of what Minecraft gameplay would be like with every entity having negative mass
Quick answer
Which Negative Mass release should I use?
Negative Mass 1.0.0 targets 1.19.4 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 Negative Mass 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 Negative Mass 1.0.0 need?
Negative Mass 1.0.0. 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 Negative Mass without breaking your instance.
Built for Negative Mass 1.0.0. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use Negative Mass 1.0.0. It targets 1.19.4 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 Negative Mass 1.0.0. It opens that exact file at the source.
About this project
What does Negative Mass add?
*This mod is not a perfect replication of what the physics would act like*
*I am not a physicist*
*This is not a mod to take literally*
This mod adds negative esc like physics to you and every entity. The part where you shoot through the ground isn't 100% realistic.
- You are very buoyant
- you accelerate very fast (had to add a maximum limit to the speed, or the game would crash trying to calculate infinity speed).
- This mod isn't complete yet, as if every entity has negative mass, then you would be attracted to every entity, and eventually after enough merging, a black hole would form, but the problem comes when multiple blackholes can be formed, combining into very big "negative mass" blackholes (Like bruh, how am I supposed to do that will the attraction and stuff???)

Project description from CurseForge.
Pick your setup
Negative Mass by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Negative Mass versions and loaders
Negative Mass 1.0.0
NegativeMass1.0.0.jar
15 Oct 2023
Looking for an older file? The official CurseForge project page is in Resources.