Cobblemon Spawn Custom
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
A simple MOD to configure some customized properties from a spawned Pokemon, like IVs, Shiny and Hidden Ability chances.
⬇ Download on CurseForgeThe author built this one for Minecraft 1.21.1 on NeoForge. On other versions it may install and then do nothing.
Welcome to Cobblemon Spawn Custom
With this mod you can change how many IVs comes with a specific value or allow you to change the probability to a specific pokemon spawns with a hidden ability or being shiny. Totally customized with a configurable file.
To find the species name, you will need to access the Cobblemon/AllTheMons github and look for the spawn_world_pool folder. Inside it are the spawn configuration files for the respective pokemon.
Look for the "pokemon" variable and copy the name that is assigned to this property.
Tip: For paradox pokemon with compound names, for example Iron Valiant, you need to leave the name with the space (iron valiant), otherwise it will not be recognized.
Path to pokemon spawn configuration:
Cobblemon 1.6.1:
- common/src/main/resources/data/cobblemon/spawn_pool_world
All The Mons 2.3 (for Cobblemon 1.6.1):
- data/cobblemon/spawn_pool_world (for regular pokemon)
- data/legendary_spawns_atm/spawn_pool_world (for legendaries)
- data/paradox_spawns_atm/spawn_pool_world (for paradox)
- data/ultra_beast_spawns_atm/spawn_pool_world (for ultra beasts)
To keep cobblemon's default configuration set ha_chance and shiny_chance to 0.
Example Configuration:
{
"paradox": {
"iv_value": 31,
"iv_quantity": 3,
"shiny_chance": 0.20,
"ha_chance": 0.25,
"species_list": [
"iron valiant"
]
},
"legendary": {
"iv_value": 31,
"iv_quantity": 5,
"shiny_chance": 0.10,
"ha_chance": 0.15,
"species_list": [
"celebi"
]
},
"ultrabeasts": {
"iv_value": 31,
"iv_quantity": 4,
"shiny_chance": 0.15,
"ha_chance": 0.20,
"species_list": [
"xurkitree"
]
},
"ditto": {
"iv_value": 31,
"iv_quantity": 2,
"shiny_chance": 0.01,
"ha_chance": 0.01,
"species_list": [
"ditto"
]
}
}
Requirements
Cobblemon 1.6.1
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- 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.
- Ships as cobblemonspawncustom-neoforge-1.6.1+1.21.1.jar — drop this file into the mods folder
- Download size: 15 KB
- Download link checked 19 Oct 2026 — working
These come from our own check of the pack file, not from the source page.