How do I install Unusual Spawning?

Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. Download the .jar. Put it in the .minecraft/mods folder and launch that loader profile. Opens on CurseForge — not every file is mirrored on our own servers.

What Minecraft version does Unusual Spawning work with?

The listing gives Minecraft 1.20.1. This is the version stated by the author or source site, not something we verified ourselves.

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Unusual Spawning

Java mod listed for Minecraft 1.20. File opened and checked on 13 Oct 2026; downloads from the MC Java Mods app on Android.

by MHI · on CurseForge

⬇ Download on CurseForge

The author built this one for Minecraft 1.20.1 on Forge. On other versions it may install and then do nothing.

Open in MC Java Mods Get it on Google Play →

This addon will add a natural spawn system to both mobs and plants from Unusual Prehistory 2 mods that exist on their respective biome.

List of Mobs biome

Carnotaurus - Savanna, Badlands
Diplocaulus - Swamp, Mangrove Swamp
Dromaeosaurus - Plains, Forests
Dunkleosteus - Warm Ocean, Lukewarm Ocean
Jawless Fish - Warm Ocean, Lukewarm Ocean
Kentrosaurus - Plains, Jungle, Savanna, Forests
Kimmeridgebrachypteraeschnidium - Swamp, Beach
Majungasaurus - Jungles, Beach
Megalania - Savanna
Metriorhynchus - Warm Ocean, Lukewarm Ocean
Onchopristis - Rivers
Stethacanthus - Warm Ocean, Lukewarm Ocean
Talpanas - Dark Forest, Lush Caves, Beach
Tartuosteus - Warm Ocean, Lukewarm Ocean, Deep Ocean, Deep Lukewarm Ocean, Ocean
Telecrex - Plains, Meadow, Savanna
Kaprosuchus - Savanna
Desmatosuchus - Swamp
Lystrosaurus - Swamp
Pachycephalosaurus - Badlands
Psilopterus - Savanna
Leptictidium - Desert, Badlands
Ulughbegsaurus - Plains, Beach
Coelacanthus - Deep Ocean
Lobe Finned Fish - River
Hibbertopterus - Swamps
Pterodactylus - Caves, Beach
Brachiosaurus - Sparse Jungle, Beach
Praepusa - Frozen Ocean, Snowy Beach
Aegirocassis - Deep Ocean
Mosasaurus - Deep Ocean

List of Plants biome

Gingko - Forests
Lepidodendron - Swamps
Bennettitales - Badlands, Deserts
Calamophyton - Swamps
Cladophlebis - Swamps, Forests, Jungles
Cooksonia - Meadow, Plains
Horsetail - Swamps, Forests, Jungles
Giant Horsetail - Swamps, Forests, Jungles
Leefructus - Swamps, Forests, Jungles, Plains
Moss Layer - Swamps
Quillwort - Swamps, Rivers
Raiguenrayun - Sunflower Plains
Rhynia - Swamps, Beach
Aethophylllum - Jungles, Swamp
Archaeosigillaria - Swamp
Brachyphyllum - Old Growth Taiga, Swamp
Neomariopteris - Badlands, Desert
Tempskya - Old Growth Taiga
Delitzschala Stalk - Swamps
Zhangsolva Bloom - Sunflower Plains

This addon is also compatible with:
Windswept
Spawn
Environmental
Atmospheric
Nature's Spirit
Biomes O' Plenty
Oh the Biomes We've Gone
Region Unexplored

Special Thanks to:
Unusual Prehistory 2 Team for creating the mod
Platypus, for helping and tweaking the spawn system

If you found any problem or bugs, please report to the comment section or discord server

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft version listed: 1.20.1
How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

File checked by MCModsHub

Ships as unusual_spawning-1.20.1-1.3.1.jar — drop this file into the mods folder
Download size: 196 KB
Download link checked 2 Oct 2026 — working

These come from our own check of the pack file, not from the source page.

Explore more

All Mods for Java All Minecraft Java mods Java mods for 1.20