MaceOptimiser

MaceOptimiser

This mod helps for fix ghost hit on servers

by
22.3K Downloads
fabricequipmentoptimizationutility
Configure a Compatible Minecraft Server

About this Mod

In Minecraft PvP and PvE, lag often causes "Ghost Hits"—situations where your client thinks you hit an enemy, plays the sound and particles, but the server rejects it because you were slightly too far away.

​The Solution:

This Fabric mod acts as a client-side range limiter. It calculates the exact distance to your target before you swing. If the target is further than 3.0 blocks (the standard survival reach), the mod prevents the attack packet from sending.

​Features:

  • ​Instant Feedback: If you don't swing, you know you need to move closer.
  • ​Client-Side Only: Works on any server without needing to be installed on the server.
  • ​Lightweight: Zero performance impact.
  • ​Fair Play: Does not increase reach; it only validates it to match vanilla behavior.

Available Versions

MaceOptimiser 1.2.0release
MC 1.21.11fabric
January 9, 2026
MaceOptimiser v1.1release
MC 1.21.11fabric
January 6, 2026
MaceOptimiser v1.0.0release
MC 1.21.10fabric
December 16, 2025

How to Install MaceOptimiser on Your Client

1

Install the Mod Loader Locally

Install fabric for your local Minecraft version.

2

Download the Matching File

Choose the MaceOptimiser file for fabric and Minecraft 1.21.11.

3

Install Mod

Place the .jar file in your local .minecraft/mods folder and restart Minecraft. No server-side installation is required.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.11, 1.21.10

Server-side

Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Does MaceOptimiser need to be installed on the Minecraft server?

No. Modrinth marks MaceOptimiser as unsupported on the server side. Install it only in your local Minecraft mods folder. Your server can remain unchanged unless the mod page lists an additional dependency.

Which version and loader does MaceOptimiser require?

Use a file for fabric and your exact Minecraft version. Supported versions include 1.21.11, 1.21.10. Files for different loaders are not interchangeable.

MaceOptimiser is not working – what should I check?

First check the Minecraft version, loader version and required dependencies. Put the .jar file in your local .minecraft/mods folder and remove older duplicates. Because this mod is client-side, adding server RAM will not fix it.

Minecraft Server for Your Group

MaceOptimiser stays on your client. Host a compatible world for your group.

Recommended RAM
4 GBfrom €5.2/mo
Minimum 3 GB | per 8 players
Create Server Now
Client Compatibility Guide
NVMe SSD Storage
DDoS Protection included

Details

License
LicenseRef-All-Rights-Reserved
Server-side
Unsupported

Supported Versions

1.21.111.21.10