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PhysicsFix project artwork

CurseForge · Minecraft mod

PhysicsFix

Reverts 1.8 mob physics to behave like Minecraft 1.7.10 and below.

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which PhysicsFix release should I use?

Updated 10 years ago
Latest stable file PhysicsFix v1.1 (for Minecraft 1.8.8/1.8.9)
Game version 1.8.8, 1.8.9
Loader Not required

PhysicsFix v1.1 (for Minecraft 1.8.8/1.8.9) targets 1.8.8, 1.8.9. 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 PhysicsFix required on the client, server, or both?

The project page does not say whether this file belongs on the client, dedicated server, or both.

Client Source doesn’t say
Dedicated server Source doesn’t say
Loader for this release No loader listed
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

The source does not explicitly classify this release as client-only or server-only.

Understand client and server requirements Read the Minecraft installation guide

What else does PhysicsFix v1.1 (for Minecraft 1.8.8/1.8.9) need?

PhysicsFix v1.1 (for Minecraft 1.8.8/1.8.9). Change the file and its required mods may change too.

No extra mods listed for this file

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 PhysicsFix without breaking your instance.

Built for PhysicsFix v1.1 (for Minecraft 1.8.8/1.8.9). Pick another file and the loader, install side or required mods may change.

  1. 01

    Stick to this file

    Use PhysicsFix v1.1 (for Minecraft 1.8.8/1.8.9). It targets 1.8.8, 1.8.9; another release may have different loader, side or dependency requirements.

  2. 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.

  3. 03

    Put it on the correct side

    The project page does not say whether this file belongs on the client, dedicated server, or both.

  4. 04

    Pick the file you checked

    Use the “Get this file” button beside PhysicsFix v1.1 (for Minecraft 1.8.8/1.8.9). It opens that exact file at the source.

About this project

What does PhysicsFix add?

You may have noticed in Minecraft 1.8+ that mobs have this very floaty quality about them when hit. This is due to a change by Mojang where the client no longer reacts immediately to movement, and only does so when movement is received from the server (internal or otherwise). PhysicsFix is a small tweak which reverts the mob physics to behave more like Minecraft 1.7.10 and below.

Note: This mod can inadvertently make a client-side bug become visible, where sometimes a mob will appear to be partially in the ground. You may only experience this in certain situations, and it doesn't really affect gameplay. If I discover the source, I'll patch it as well.

Project description from CurseForge.

Pick your setup

PhysicsFix by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

3 available setups

Check the dependencies, then try the file in a copied instance before changing a world you care about.

Recent files

PhysicsFix versions and loaders

2 of 2 releases match

Looking for an older file? The official CurseForge project page is in Resources.

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