DatapacksJava
Primordial Pocket Monsters Data Pack (1.20.1) – Catch Rare Cobblemon Deep
Primordial Pocket Monsters Data Pack adds custom Cobblemon spawns to underground biomes from Alex's Caves. It populates each distinct cave ecosystem with…
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Primordial Pocket Monsters Data Pack adds custom Cobblemon spawns to underground biomes from Alex’s Caves. It populates each distinct cave ecosystem with fitting monsters, ranging from prehistoric fossils in ancient grottos to metallic species in magnetic caverns. This data pack gives players reasons to explore deep subterranean biomes and build specialized battle teams.
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Features:
- Populates subterranean biomes from Alex’s Caves with themed monster spawns.
- Spawns ancient fossil species throughout prehistoric underground areas.
- Fills magnetic caverns with electric, steel, and rock type creatures.
- Adds toxic and poison monsters to radioactive cave sectors.
- Places sweet food-themed species inside candy grottos.
- Brings spectral encounters to dark hollow caverns.
- Includes rare legendary and paradox monster spawn chances.
- Retains partial default spawn tables inside deep chasms and hollow biomes.
Biome Spawn Distribution:
- Primordial Caves: Spawns ancient fossil species like Tyrunt, Aerodactyl, Kabuto, and starter species such as Bulbasaur.
- Magnetic Caves: Spawns steel and mineral creatures including Beldum, Magnemite, Porygon, and rare paradox spawns.
- Candy Cavity: Spawns food-themed monsters such as Milcery, Dachsbun, Snorlax, and Nacli.
- Toxic Caves: Spawns hazardous species including Koffing, Paldean Wooper, Gligar, and ultra-rare Poipole.
- Forlorn Hollows: Spawns ghostly creatures like Spiritomb, Shedinja, Cubone, and Hisuian Zorua.
- Abyssal Chasm: Spawns deep-sea swimmers such as Relicanth, Overqwil, Dhelmise, Sharpedo, and Gyarados.
How to Use:
- Place the data pack into your world’s datapacks folder.
- Explore underground cave systems to find custom monster spawns in their respective biomes.
- Move files out of the unmodeled folder whenever compatible models are added in game updates.
Screenshots:






Primordial Pocket Monsters Data Pack Download Links
Verified by MCModsHub
- Downloads as 504169.mcpack
- Download size: 91 KB
- Download link checked 3 Sept 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.