ModsFinder

Cobblemon Pokerus

by tmetcalfe89

Cobblemon Pokerus lets a Pokémon catch an infection during battle, which spreads to teammates and is cured over time while boosting its EV gains.

FabricNeoForgeServer-side onlyMIT License1.21.1

What it does

Infection happens at random when a party Pokémon battles a wild Pokémon. An infected Pokémon in the party can pass the infection to others on the team, and the infection clears on its own after a set number of in-game days of battling. Infected Pokémon still gain boosted EVs after the cure, but they can no longer spread it.

The mod runs on the server alone, so players join without installing it. It is published for Fabric and NeoForge, with files for 1.21.1 only. It depends on Cobblemon and Cobblemon Tim Core, both required next to it. The code is under the MIT License and is not open source.

Key features

  1. Random infection

    A party Pokémon can contract Pokérus at random after a battle with a wild Pokémon.

  2. Spread across the party

    An infected Pokémon can pass the infection to other Pokémon on the same team during later battles.

  3. Timed cure

    The infection wears off after a set number of in-game days of battling, leaving the Pokémon with a mark in its list.

  4. Boosted EV gains

    Infected Pokémon earn more EVs from defeated battle opponents, such as two Speed EVs where one is normally granted.

Compatibility

Latest build for each game version and loader.

1.21.11.8.1-fabric-1.1.01.8.1-neoforge-1.1.0
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 2

Cobblemon Tim CoreWhat if my Cobblemon mods worked without a bunch of copy/pasting?
Required
CobblemonA Pokémon mod for Fabric and NeoForge
Required

How it compares

Full comparison

Cobblemon - Let Me Spawn is server-side only, open source under the Mozilla Public License 2.0, and published for Fabric and NeoForge on 1.21.1. Cobblemon True Pickup is server-side only, not open source under the MIT License, and published for Fabric on 1.21.1.

ModLoadersGame versionsEnvironmentUpdated
Cobblemon PokerusFabric and NeoForge1.21.1Server-side only2026-09-30
Cobblemon - Let Me SpawnFabric and NeoForge1.21.1Server-side only2026-02-10
Cobblemon True PickupFabric1.21.1Server-side only2026-09-08

Questions

Does Cobblemon Pokerus need Cobblemon Tim Core?

Yes. Cobblemon and Cobblemon Tim Core are both required dependencies, so both must be installed alongside Cobblemon Pokerus.

Does a player need the mod installed to join a server that runs it?

No. Only the server needs it, and players join without installing anything.

Which loaders does Cobblemon Pokerus support?

Fabric and NeoForge, with the latest files for 1.21.1 dated 2026-09-30 on both loaders.

In the catalog

Cobblemon Pokerus is one of 29,952 Game mechanics mods on ModsFinder, and one of 19,630 Game mechanics mods for Fabric. 32,366 mods support Minecraft 1.21.1.

More from tmetcalfe89

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What the author says

…your Pokémon could get sick, but stronger for some reason? After running the game at least once with the mod installed, open the config and modify wildInfectionChanceDenominator to 3, then run /pokerus reload. Change this back when you’re done testing, otherwise you will have a 100% chance to gain Pokérus after a…
tmetcalfe89, on the Modrinth page

Official listing

Owner
tmetcalfe89
Published
2025-06-26
Updated on Modrinth
2026-09-30
Facts verified
2026-10-15

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