ModsFinder
SL

Slatetune

by infinrupi

Slatetune lets server owners tune natural mob spawning with per-mob toggles, population limits and category caps, all through an in-game screen.

FabricServer-side onlyMIT License1.21.11

What it does

The mod controls vanilla natural chunk spawning on a Fabric server. A search field helps locate each naturally spawning mob type, and every type can be switched on or off individually. Population limits can be set per mob and per dimension, and the vanilla spawn categories can have their caps changed as well.

A single global multiplier scales all category caps at once, and the screen shows the effective cap after scaling, calculated as the configured vanilla cap times the multiplier. A one-click action restores the vanilla caps, and a button can double the configured caps. Settings are saved in-game through the screen that Mod Menu provides.

Slatetune is a server-side mod: installing it only on a multiplayer client changes nothing, and players join without it. In a server-integrated singleplayer world, installing it controls spawning for that world. It requires Fabric API and Mod Menu, and files are published for Fabric only, for 1.21.11, under the MIT License; the mod is not open source.

Key features

  1. Spawn toggles per mob

    Natural spawning can be enabled or disabled for each mob type, with a search field to find it quickly.

  2. Population limits by dimension

    Each mob can have its own population limit, set separately for every dimension.

  3. Global cap multiplier

    One multiplier scales every vanilla category cap, and the resulting effective cap is shown after scaling.

  4. Restore and double caps

    A single action returns the caps to vanilla values or doubles the configured caps, so changes can be reverted quickly.

Compatibility

Latest build for each game version and loader.

No stable releases
Every published file is a beta or alpha build.
1.21.111.3.0
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 2

Fabric APILightweight and modular API providing common hooks and intercompatibility measures utilized by mods using the Fabric toolchain.
Required
Mod MenuAdds a mod menu to view the list of mods you have installed.
Required

Use cases

Taming crowded spawns

A server owner can lower the caps of a mob type that floods an area, or switch its natural spawning off without using commands.

Tuning a survival world

Caps can be raised gradually from vanilla values while watching the effective cap on screen, which keeps entity counts in check.

Who it’s for: Server owners who want to adjust natural mob spawning without editing JSON or running commands. Players only need the mod when it runs in a server-integrated singleplayer world.

Questions

Does Slatetune need to be installed on the client?

No. Players join without it, since only the server has to run the mod. Only the server, or a server-integrated singleplayer world, needs it.

Which dependencies does Slatetune require?

Fabric API and Mod Menu are required. Mod Menu provides the in-game settings screen where changes are saved.

Why should caps be increased gradually?

High caps create large numbers of entities and can severely reduce server performance, so values are usefully raised in small steps while watching the effective cap.

More from infinrupi

All projects
ASah sell1.21.1 – 26.2SLSlateburst1.21.11

What the author says

Fine-tune natural mob spawning with searchable toggles, per-mob limits, category caps, and global scaling. SpawnTune gives you precise control over natural mob spawning without requiring commands or manual JSON editing.
infinrupi, on the Modrinth page

Official listing

Owner
infinrupi
Published
2026-09-01
Updated on Modrinth
2026-09-01
Facts verified
2026-10-15
Open on ModrinthCompare