modpacks.ch by CreeperHost No ads. Just mods.
Back to mods
EcoSpawn project artwork

CurseForge · Minecraft mod

EcoSpawn

Adds natural spawning to mobs from other mods, matched by biome tag. Includes ecology-based habitats for all 62 Fossils & Archeology creatures

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

Quick answer

Which EcoSpawn release should I use?

Updated today
Latest stable file ecospawn-1.20.1-1.1.0.jar
Game version 1.20.1
Loader Forge

ecospawn-1.20.1-1.1.0.jar targets 1.20.1 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.

Where it goes

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

The project page does not say whether this file belongs on the client, dedicated server, or both.

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

The source does not explicitly classify this release as client-only or server-only.

Understand client and server requirements Read the Minecraft installation guide

What else does ecospawn-1.20.1-1.1.0.jar need?

ecospawn-1.20.1-1.1.0.jar. 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 EcoSpawn without breaking your instance.

Built for ecospawn-1.20.1-1.1.0.jar. Pick another file and the loader, install side or required mods may change.

  1. 01

    Stick to this file

    Use ecospawn-1.20.1-1.1.0.jar. It targets 1.20.1 with Forge; 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

    The project page does not say whether this file belongs on the client, dedicated server, or both.

  4. 04

    Pick the file you checked

    Use the “Get this file” button beside ecospawn-1.20.1-1.1.0.jar. It opens that exact file at the source.

About this project

What does EcoSpawn add?

Many mods add creatures but never set up natural spawning, so you only see them from spawn eggs. EcoSpawn fixes that from plain JSON files you edit yourself.

Habitats are matched by biome tag, not biome name, so swapping Terralith for Biomes O' Plenty won't break them. Tags combine with AND and NOT, so "cold grassland" or "forest but not jungle" actually work.

Includes a full Fossils & Archeology: Revival preset — all 62 creatures placed by ecology. Mammoths on cold steppe, Spinosaurus on warm rivers, marine reptiles in open ocean.

Tune spawn weight, group size, height, light, time of day, water proximity, rarity and crowding without rebuilding anything.

/ecospawn why <mob> tells you exactly which check failed where you're standing.

Works with any mod's creatures — type an entity ID into the config and give it a habitat. Mobs with no rule are never touched

Commissioned for Mesozoa (my modpack) by Saurophilius_rex

Project description from CurseForge.

Pick your setup

EcoSpawn by Minecraft version and loader

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

1 available setups

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

Recent files

EcoSpawn versions and loaders

2 of 2 releases match

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

Keep browsing

See more mods

Like this one? One of these might be worth a look.