ModsFinder

In Control!

by McJty

With In Control!, server owners set mob spawn rules, spawn properties, loot and experience through JSON files that the mod reads at startup.

FabricForgeNeoForgeServer-side onlyMIT LicenseOpen source1.10.2 – 26.2

What it does

The mod is built around five rule files. spawn.json blocks spawns of chosen creatures under set conditions and can also change properties of a mob when its spawn is allowed, such as maximum health. summonaid.json applies the same structure as spawn.json, but only to reinforcements. spawner.json, available from 1.16 on, adds spawn rules under set conditions. potentialspawn.json, available only for 1.12, removes and adds spawn rules and is evaluated before spawn.json, so any new mob allowed there must also be allowed in spawn.json.

loot.json controls what mobs drop on death based on several criteria, and experience.json controls how much experience a player gains from killing mobs under the same kind of criteria. Fabric API is required on every loader. The Lost Cities is optional. Players join without it, since only the server has to run the mod. Files are published for Fabric, Forge and NeoForge across 19 release versions, 1.10.2 – 26.2.

Key features

  1. Spawn blocking

    Chosen creatures can be prevented from spawning when set conditions are met.

  2. Spawn property changes

    When a spawn is allowed, properties such as maximum health can be altered for that mob.

  3. Reinforcement rules

    A separate summonaid file governs reinforcements, using the same format as spawn rules.

  4. Loot control

    Drops from killed mobs can be set by criteria in a dedicated loot file.

  5. Experience control

    The experience a player gains from killing mobs is set by criteria in its own file.

Compatibility

Latest build for each game version and loader.

26.x1 of 1 version with builds
26.226.2-11.0.0-fabricNot available26.2-11.0.0
1.21.x2 of 2 versions with builds
1.21.11.21.1-10.3.0-fabricNot available1.21-10.3.0
1.21Not availableNot available1.21-10.0.1
1.20.x1 of 1 version with builds
1.20.1Not available1.20-9.5.0Not available
1.19.x3 of 3 versions with builds
1.19.3Not available1.19.3-8.0.7Not available
1.19.2Not available1.19-7.1.18Not available
1.19Not available1.19-7.0.7Not available
1.18.x2 of 2 versions with builds
1.18.2Not available1.18-6.1.14Not available
1.18.1Not available1.18-6.0.5Not available
1.16.x3 of 3 versions with builds
1.16.5Not available1.16-5.2.12Not available
1.16.4Not available1.16-5.2.12Not available
1.16.3Not available1.16-5.0.3Not available
1.15.x1 of 1 version with builds
1.12.x3 of 3 versions with builds
1.11.x2 of 2 versions with builds
1.10.x1 of 1 version with builds
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

Optional 1

The Lost CitiesAllows the player to play in an old abandoned city instead of the normal overworld
Optional

Use cases

Tuning a survival world

A server owner can reduce spawns of a creature type or adjust mob health to change the difficulty of a world.

Adjusting rewards

Loot and experience files let an owner change what a kill returns without editing other mod data.

Who it’s for: Server owners and modpack builders who want to control mob spawns, drops and experience through rule files rather than code.

How it compares

Full comparison

Mob Control runs on client and server, works on Fabric, Forge and NeoForge for 1.20.1 – 26.1.2, and is not open source. Easy Mob Spawn Control needs the server and is optional on the client, targets 1.19.2 – 26.3 and is not open source. Only Zombies Spawn is server-side only, open source under the MIT License and covers 1.18.2 – 26.2, but it limits its scope to zombies.

ModLoadersGame versionsEnvironmentUpdated
In Control!Fabric, Forge and NeoForge1.10.2 – 26.2Server-side only2026-10-10
Mob ControlFabric, Forge and NeoForge1.20.1 – 26.1.2Client and server2026-07-17
Easy Mob Spawn ControlFabric, Forge and NeoForge1.19.2 – 26.3Server required, client optional2026-10-11
Only Zombies SpawnFabric, Forge and NeoForge1.18.2 – 26.2Server-side only2026-07-08

Questions

Does In Control! need Fabric API?

Yes. Fabric API is a required dependency on every loader, so it must be installed alongside In Control!.

Does the mod have to be installed on the client?

No. Only the server needs it, and players join without installing anything.

Is spawner.json available for every version?

No. spawner.json is available from 1.16 on, and potentialspawn.json is available only for 1.12.

Does The Lost Cities change how the mod works?

The Lost Cities is an optional dependency. It requires Fabric API.

In the catalog

In Control! is one of 11,058 Mobs mods on ModsFinder, and one of 5,189 Mobs mods for Fabric. 13,894 mods support Minecraft 26.2.

Mobs mods11,058Fabric modsMods for 26.213,894

More from McJty

All projects
The Lost Cities1.10.2 – 26.2McJtyLib1.7.10 – 1.21.1RFTools Base1.14.3 – 1.21.1RFTools Utility1.14.4 – 1.21.1The One Probe1.9 – 26.2XNet1.10.2 – 1.21.1

Similar mods

[EMF] Entity Model Features1.18.2 – 26.3L_Ender's Cataclysm1.19.2 – 1.21.5Alex's Mobs1.16.5 – 1.20.1Guard Villagers1.16.5 – 26.3Touhou Little Maid1.16.5 – 1.21.1Creeper Overhaul1.18.2 – 1.21.1

What the author says

This is a simple mod that gives you full control on where mobs are allowed to spawn. It is based on a rule system. The rule files are located in config/incontrol. There are currently five rule files (as of 3.5.1): - spawn.json: with this file you can block spawning of certain creatures under certain conditions. In…
McJty, on the Modrinth page

Official listing

Owner
McJty
Published
2023-01-26
Updated on Modrinth
2026-10-10
Facts verified
2026-10-15

Tags

ManagementMobsUtility
Open on ModrinthCompare