CurseForge · Minecraft mod
Cobblemon Shiny Days
Choose days of the week to increase shiny rates for either all Pokémon or specific Pokémon, giving your server events similar to Community Days in Pokémon GO.
Quick answer
Which Cobblemon Shiny Days release should I use?
Cobblemon Shiny Days CobblemonShinyDays-1.1.1-fabric.jar targets 1.21.1 with Fabric. The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server. All 2 required mods have matching files.
Where it goes
Is Cobblemon Shiny Days required on the client, server, or both?
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
The source does not explicitly classify this release as client-only or server-only.
What else does Cobblemon Shiny Days CobblemonShinyDays-1.1.1-fabric.jar need?
CobblemonShinyDays-1.1.1-fabric.jar. Change the file and its required mods may change too.
Install Cobblemon, Fabric API first. We found matching files for this game-version and loader setup. 1 comes through another mod in the chain.
1 extra mod was pulled in by another dependency. Indented rows show who needs each one. We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Cobblemon Shiny Days without breaking your instance.
Built for Cobblemon Shiny Days CobblemonShinyDays-1.1.1-fabric.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use CobblemonShinyDays-1.1.1-fabric.jar. It targets 1.21.1 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Cobblemon, Fabric API first. We found matching files for this game-version and loader setup. 1 comes through another mod in the chain.
- 03
Put it on the correct side
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside CobblemonShinyDays-1.1.1-fabric.jar. It opens that exact file at the source.
About this project
What does Cobblemon Shiny Days add?

Choose days of the week to increase shiny odds for either all Pokémon or specific Pokémon, giving your server events similar to Community Days in Pokémon GO.
Dependencies
Cobblemon - Modrinth / Curseforge
Fabric Language Kotlin (for Fabric servers) - Modrinth / Curseforge
Features
- Choose which days to increase shiny rates
- Increase shiny odds for all spawns or only specific Pokémon
- Broadcasts a message at a customisable interval to remind players what shiny rates are currently increased
- /shinyday command to check currently boosted shiny rates
Installation
Place the .jar file in your /mods folder, and restart the server.
Configuration
The configuration has 5 customisable options
- "species" : which Pokémon will have increased rates (can use "ALL" to increase odds of all Pokémon)
- "labels" : Pokémon with these labels will have their shiny rates increased ("legendary", "gen1", "gen2" etc.)
- "types" : Pokémon with these types will have their shiny rates increased ("water", "fire" etc.)
- "days" : which days to apply the specified rates to the specified Pokémon
- "multiplier" : how much to multiply odds by (uses the shiny rates in your Cobblemon config as a base rate, then adds this modifier) e.g. Cobblemon shiny rate is 1/8192, a multiplier of 2.0 will make the rate 1/4096
- "broadcastInterval" : how often to send the broadcast (in seconds) letting players know which Pokémon have increased shiny rates.
Example Config
[
{
"species": ["Pikachu", "Bulbasaur", "Charmander", "Squirtle"],
"labels": ["legendary", "mythical"],
"types": ["normal"],
"days": ["Saturday", "Sunday"],
"multiplier": 5.0,
"broadcastInterval": 300
},
{
"species": [],
"labels": ["gen1"],
"types": ["water"],
"days": ["Monday"],
"multiplier": 2.0,
"broadcastInterval": 300
},
{
"species": [],
"labels": ["gen2"],
"types": ["fire"],
"days": ["Tuesday"],
"multiplier": 2.0,
"broadcastInterval": 300
},
{
"species": [],
"labels": ["gen3"],
"types": ["grass"],
"days": ["Wednesday"],
"multiplier": 2.0,
"broadcastInterval": 300
},
{
"species": [],
"labels": ["gen4"],
"types": ["psychic"],
"days": ["Thursday"],
"multiplier": 2.0,
"broadcastInterval": 300
},
{
"species": [],
"labels": ["gen5"],
"types": ["steel"],
"days": ["Friday"],
"multiplier": 2.0,
"broadcastInterval": 300
}
]
The config above would work as follows
Saturday and Sunday - Pikachu, Bulbasaur, Charmander, Squirtle, Normal-type, legendary and mythical Pokemon have 5x shiny rates
Monday - All Gen 1 & Water-type Pokemon have 2x shiny rates
Tuesday - All Gen 2 & Fire-type Pokemon have 2x shiny rates
Wednesday - All Gen 3 & Grass-type Pokemon have 2x shiny rates
Thursday - All Gen 4 & Psychic-type Pokemon have 2x shiny rates
Friday - All Gen 5 & Steel-type Pokemon have 2x shiny rates
Authors
Created by Shadymitsu and ChatGPT
License
MIT
Project description from CurseForge.
Pick your setup
Cobblemon Shiny Days by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.1
2 loader buildsCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Cobblemon Shiny Days versions and loaders
CobblemonShinyDays-1.1.1-fabric.jar
4 Jun 2026
CobblemonShinyDays-1.1.1-neoforge.jar
18 Jun 2025
CobblemonShinyDays-1.1.0-fabric.jar
30 May 2025
CobblemonShinyDays-1.1.0-neoforge.jar
30 May 2025
CobblemonShinyDays-1.0.2-neoforge.jar
26 Apr 2025
CobblemonShinyDays-1.0.2-fabric.jar
26 Apr 2025
CobblemonShinyDays-1.0.1-fabric.jar
18 Apr 2025
CobblemonShinyDays-1.0.1-neoforge.jar
CobblemonShinyDays-1.0.1.jar
13 Apr 2025
CobblemonShinyDays-1.0-neoforge.jar
CobblemonShinyDays-1.0.jar
12 Apr 2025
Looking for an older file? The official CurseForge project page is in Resources.