ModsFinder

KH Mob Stacker

by JGFox

KH Mob Stacker groups nearby mobs of the same kind into one entity on Fabric servers, so a crowded farm or spawn area loads fewer separate creatures.

FabricServer-side onlyAll rights reserved26.1.2

What it does

Stacking works on the server alone. When similar mobs sit within the configured radius, they merge into a single stack whose size can be set between a minimum of 6 and a maximum of 64. Players join without installing anything, since the mod changes nothing on the client.

Server owners tune the behavior in the config file and operators can adjust settings in game through commands. The mod depends on Fabric API and is published for Fabric only, with a single release, 1.0.3 for 26.1.2, dated 2026-06-18. It is licensed as All rights reserved and is not open source.

Key features

  1. Mob stacking

    Similar mobs within the search radius are merged so that one stack takes the place of many separate entities.

  2. Adjustable stack size

    The minimum is 6 and the maximum is 64, so a server can choose how aggressively mobs are grouped.

  3. Configurable radius

    A radius of 6 blocks is the default, and the search distance can be changed in the config.

  4. In-game administration

    Operators can view and change the stacking settings with commands while the server is running.

Compatibility

Latest build for each game version and loader.

26.1.21.0.3
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 1

Fabric APILightweight and modular API providing common hooks and intercompatibility measures utilized by mods using the Fabric toolchain.
Required

Use cases

Busy server spawns

Areas where many mobs gather, such as farms or spawn zones, can be grouped to reduce the number of separate entities a server tracks.

Admin tuning

Server owners who want to change how tightly mobs group can adjust the minimum, maximum and radius without restarting the server.

Who it’s for: Server owners and administrators who run Fabric servers with many mobs and want fewer separate entities to track. Players on such servers need nothing installed.

How it compares

Full comparison

IG: Potion Stacker Addon is a server-side Fabric mod for 26.2 – 26.3, released under the GNU General Public License v3.0 only, and it stacks potions rather than mobs. Time Stacker is also server-side and works on Fabric, Forge, NeoForge and Quilt for 1.18 – 1.21.4, but it is not open source and stacks time-related items instead of mobs.

ModLoadersGame versionsEnvironmentUpdated
KH Mob StackerFabric26.1.2Server-side only2026-06-18
IG: Potion Stacker AddonFabric26.2 – 26.3Server-side only2026-09-14
Time StackerFabric, Forge, NeoForge and Quilt1.18 – 1.21.4Server-side only2025-02-22

Questions

Does KH Mob Stacker need Fabric API?

Yes. Fabric API is a required dependency and must be installed alongside KH Mob Stacker on the server.

Do players need the mod installed?

No. Server owners install it, and players connect with no copy of their own.

Which game version does the mod support?

Files target 26.1.2 only, and the latest Fabric build is 1.0.3 for that version.

Can the stack size be changed?

Yes. The minimum is 6 and the maximum is 64, and operators can adjust the values through the config or commands.

More from JGFox

All projects
KH Thirst Bar1.21.8KH Economy Commands1.21.8 – 1.21.10KHTp26.1.2

Official listing

Owner
JGFox
Published
2026-06-18
Updated on Modrinth
2026-06-18
Facts verified
2026-10-15
Open on ModrinthCompare