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CobblemonOptimizer project artwork

Modrinth · Minecraft mod

CobblemonOptimizer

CobbleOptimizer is a server-side Fabric mod that reduces lag caused by Cobblemon's Pokemon entities.

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which CobblemonOptimizer release should I use?

Updated 2 months ago
Latest stable file 4.6.0
Game version 1.21.1
Loader NeoForge

CobblemonOptimizer 4.6.0 targets 1.21.1 with NeoForge. Do not install it on the client. It must be installed on the dedicated server. No extra mods listed for this file.

Where it goes

Is CobblemonOptimizer required on the client, server, or both?

Do not install it on the client. It must be installed on the dedicated server.

Client Not supported
Dedicated server Required
Loader for this release NeoForge
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

This file is marked server-only.

What else does CobblemonOptimizer 4.6.0 need?

4.6.0. Change the file and its required mods may change too.

No extra mods listed for this file

This file does not list any required mods. Do not add a library just because a different file uses it.

This file does not list any required or optional mods.

Before you install it

Add CobblemonOptimizer without breaking your instance.

Built for CobblemonOptimizer 4.6.0. Pick another file and the loader, install side or required mods may change.

  1. 01

    Stick to this file

    Use 4.6.0. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.

  2. 02

    Bring the mods it needs

    This file does not list any required mods. Do not add a library just because a different file uses it.

  3. 03

    Put it on the correct side

    Do not install it on the client. It must be installed on the dedicated server.

  4. 04

    Pick the file you checked

    Use the “Get this file” button beside 4.6.0. It opens that exact file at the source.

About this project

What does CobblemonOptimizer add?

CobbleOptimizer

A server-side Fabric mod for Minecraft 1.21.1 that optimizes Cobblemon (the Pokemon mod) entity performance based on server load (TPS). It has 4 main
features:

  1. Tick Throttle — Reduces how often distant/unimportant Pokemon entities are ticked. When the server TPS drops, Pokemon far from players get their tick rate
    reduced, saving CPU cycles.
  2. AI Freeze — Completely freezes the AI of Pokemon entities that are far from any player. If no one is nearby to observe them, there's no need to run their
    pathfinding and behavior logic.
  3. Adaptive Spawn — Dynamically adjusts Pokemon spawn rates based on current server TPS. When the server is struggling, fewer Pokemon spawn; when it's
    healthy, spawns return to normal.
  4. Batch Despawn — Removes excess Pokemon entities in bulk when the server is overloaded, prioritizing removal of unimportant ones (non-shiny, non-legendary,
    unowned, not in battle).

Shared Infrastructure

  • TPS Monitor — Continuously tracks server TPS to inform all features.
  • Player Tracker — Caches player-to-entity distances so multiple features can cheaply check proximity.
  • Config — TOML-based configuration with in-game commands (/cobbleoptimizer) to tweak thresholds on the fly.

In short

It's a performance optimization mod that keeps Cobblemon servers running smoothly by intelligently scaling back Pokemon entity processing when the server is
under load, while protecting important Pokemon (shinies, legendaries, battling, owned) from aggressive optimization.

Project description from Modrinth.

Pick your setup

CobblemonOptimizer by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

5 available setups

Check the dependencies, then try the file in a copied instance before changing a world you care about.

Recent files

CobblemonOptimizer versions and loaders

33 of 33 releases match

Looking for an older file? The official Modrinth project page is in Resources.