MaceOptimiser
by OverScarf511
With MaceOptimiser installed on a Fabric client, hits against a server that tends to register them as ghost hits are checked on the client before they are sent.
What it does
MaceOptimiser is a Fabric mod that targets ghost hits, where an attack appears to land on the client but the server does not count it. The mod checks the attack against vanilla hit behavior on the client side, so the player gets feedback on whether a hit should register. It only validates attacks to match vanilla behavior and does not change the outcome of a fight.
The mod is environment-limited: it runs in the client alone and needs no installation on the server. Server owners do not have to add anything to their setup. The author notes that the mod can increase the reach a player appears to have, and asks players to swing, wait for the cooldown and move closer before attacking.
MaceOptimiser is published for Fabric only, with builds for 1.21.10 and 1.21.11. The latest file is 1.2.0 for 1.21.11, released 2026-01-09. The mod is released under All rights reserved and is not open source.
Key features
Ghost hit checks
Attacks are compared against vanilla hit behavior on the client before they are sent, which helps catch ghost hits.
Instant feedback
The player sees right away whether an attack should register, without waiting for the server to answer.
Vanilla-matched validation
The validation follows vanilla rules, so it adds no new mechanics and does not alter how hits are scored.
Adjustable reach
The author notes that the mod can increase the reach a player appears to have during an attack.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Basic Reach is a Fabric mod for 1.21.10 – 1.21.11 that runs on client and server, so the server and every player need it, and it is released under All rights reserved. NoMoreGhost is also a Fabric mod for 1.21.11 that runs on client and server, and it is released under the MIT License. Both differ from MaceOptimiser, which is client-side only and needs no server installation.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| MaceOptimiser | Fabric | 1.21.10 – 1.21.11 | Client-side only | 2026-01-09 |
| Basic Reach | Fabric | 1.21.10 – 1.21.11 | Client and server | 2025-12-23 |
| NoMoreGhost | Fabric | 1.21.11 | Client and server | 2026-05-12 |
Questions
Does MaceOptimiser need to be installed on the server?
Which Minecraft versions does MaceOptimiser support?
In the catalog
MaceOptimiser is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 19,862 mods support Minecraft 1.21.11.
Similar mods
Official listing
- Modrinth page
- modrinth.com/mod/maceoptimiser
- Owner
- OverScarf511
- Published
- 2025-12-16
- Updated on Modrinth
- 2026-01-09
- Facts verified
- 2026-10-15