ModsFinder

APTweaks: Spawn (11.x Classic)

by Kaworru

APTweaks: Spawn is a server-side Forge and NeoForge module that adjusts how mobs spawn around players and inside spawners, aiming for fewer entities.

ForgeNeoForgeServer-side onlyMIT LicenseOpen source1.18.2 – 1.21.1

What it does

Spawn limits are set per player and per world, with allow and deny lists and presets for other mods. The adaptive rate takes into account player count, the caps in place, server load and game difficulty, so the spawn rate moves with conditions instead of staying fixed. Spawner tweaks apply to loaded spawners, and a built-in debug view shows what the optimizer is doing at any time.

The module requires APTweaks: Core (11.x Classic) on every install. APTweaks: Gamerules, APTweaks: Items and APTweaks: Player are optional and can be added to extend the set. Only the server needs the mod, so players join without installing anything. The project publishes a bundled version and a standalone server setup, and the 11.x Classic line is an LTS release for existing Forge modpacks.

Files cover 1.18.2 – 1.21.1 across Forge and NeoForge, with 14 release versions in total. The latest Forge build, 11.6.1, targets 1.21.1 and was published on 2026-03-10. The code is open source under the MIT License, and the source code and issue tracker are linked from the project page.

Key features

  1. Mob spawn distribution

    Mob spawns are calculated around each player to spread entities more evenly and keep the total count lower.

  2. Adaptive spawn rate

    The rate adjusts to player count, configured caps, server load and game difficulty.

  3. Spawner tracking

    Loaded spawners are tracked and receive lightweight tweaks to keep entity counts under control.

  4. Configurable caps and lists

    Per-player and per-world caps, allow and deny lists and presets for other mods are set through config files.

  5. Built-in debug info

    A debug readout shows what the optimizer is doing, so server owners can check the effect of their settings.

Compatibility

Latest build for each game version and loader.

1.21.x2 of 2 versions with builds
1.21.111.6.1Not available
1.2111.2.0Not available
1.20.x6 of 6 versions with builds
1.20.611.2.0Not available
1.20.411.2.0Not available
1.20.311.0.0Not available
1.20.211.0.0Not available
1.20.111.6.111.6.1
1.2011.0.0Not available
1.19.x5 of 5 versions with builds
1.19.411.2.0Not available
1.19.311.0.0Not available
1.19.211.6.1Not available
1.19.111.0.0Not available
1.1911.0.0Not available
1.18.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

APTweaks: Core (11.x Classic)The core is required for all adaptive performance tweaks modules and provides a shared API, monitoring functionally, events and commands.
Required

Optional 3

APTweaks: Items (11.x Classic)Item clustering (fallen blocks, experience orbs, ...) and garbage cleanup.
Optional
APTweaks: Gamerules (11.x Classic)Automatically adjust the random tick speed, entity cramming, raids, patrol, trader and insomnia based on the current server load.
Optional
APTweaks: Player (11.x Classic)Protects players during login and provides a special "easy" mode for less experience and child players.
Optional

Questions

Does APTweaks: Spawn need APTweaks: Core?

Yes. APTweaks: Core (11.x Classic) is a required dependency and must be installed alongside APTweaks: Spawn.

Do players need to install APTweaks: Spawn?

No. It runs on the server alone, so players need nothing extra to join.

Which Minecraft versions does APTweaks: Spawn support?

The mod has files for 1.18.2 – 1.21.1 on Forge and NeoForge. The latest Forge file, 11.6.1, targets 1.21.1.

Can the spawn limits be adjusted?

Yes. Caps, allow and deny lists and presets are set in config files, and optional modules can be added for more options.

In the catalog

APTweaks: Spawn (11.x Classic) is one of 3,545 Optimization mods on ModsFinder, and one of 1,441 Optimization mods for Forge. 32,366 mods support Minecraft 1.21.1.

Optimization mods3,545Forge modsMods for 1.21.132,366

More from Kaworru

All projects
Easy NPC1.18.2 – 26.3Easy NPC: Core1.20.1 – 26.3Easy NPC: Config UI1.18.2 – 26.3Easy Mob Farm1.18.2 – 26.3Mods Optimizer1.18.2 – 1.21.11APTweaks: Core (11.x Classic)1.18.2 – 1.21.1

Similar mods

Sodium1.16.3 – 26.3Iris Shaders1.16.5 – 26.3Entity Cullingb1.7.3 – 26.3FerriteCore1.16.5 – 26.3ImmediatelyFast1.18.2 – 26.3Sodium Extra1.16.2 – 26.3

What the author says

Server-side Forge module that optimizes mob spawning: smarter distribution, spawn limits, and spawner tweaks to keep entity counts under control. Works standalone on the server; clients are optional. Stable 11.x Classic / LTS module for existing Forge modpacks.
Kaworru, on the Modrinth page

Official listing

Owner
Kaworru
Published
2023-12-09
Updated on Modrinth
2026-03-10
Facts verified
2026-10-15

Tags

OptimizationUtility
Open on ModrinthCompare