CobbleBuilds: Leaders [Cobblemon Addon]

CobbleBuilds: Leaders [Cobblemon Addon]

Find Gyms, defeat Gym Leaders, and aquire Gym Badges to become the best there ever was

by
93.6K Downloads
datapackfabricforgeneoforgequiltadventuregame-mechanicsworldgen
Rent Server with this Mod

Screenshots

Water Gym ft. Leader Cress
Grass Gym ft. Leader Cilan
Fire Gym ft. Leader Blaine.
Poison Gym ft. Leader Roxie
Electric Gym ft. Leader Elesa
Rock Gym ft. Leader Brock

About this Mod

Badge: Available on Modrinth Badge: Available on Curseforge Badge: Chat with us on Discord
Badge: Available in English Badge: Disponível em Português

CobbleBuilds: Leaders is an addon for Cobblemon that lets you find Gyms, defeat Gym Leaders, and aquire Gym Badges to become the best there ever was.

Please note

This project is still in alpha. Everything is subject to change, possibly breaking things in the process.
Always backup your world before updating the pack to ensure you can revert changes if necessary.

Also note

When updating, if the minor or major version changes, you may lose some progress.

Safe Not guaranteed
0.0.00.0.1 0.0.10.1.0 0.1.01.0.0
Gameplay

While exploring the world, you may come across Gyms populated with Gym Trainers.
You can defeat those Gym Trainers to increase your Trainer Rank.

As your Trainer Rank increases, different Gym Trainers will spawn, and their pokémon parties will scale in difficulty accordingly.
Once you reach a certain Trainer Rank, one of four Gym Leaders will spawn.

Each Gym Leader grants a Gym Badge when defeated for the first time. Those being divided into four ranks, granted in the following order: Copper, Gold, Diamond, and Netherite.

You can check your current Gym Badges and Trainer Rank via the CobbleBuilds Trainer Card tab in the advancements screen.

Current Gyms & Gym leaders

The pack currently includes 12 Gyms and 48 Gym Leaders.

Click to show full list
0.0.0︱Initial release
Electric Clemont Elesa Lt. Surge Wattson
Fire Blaine Chili Flannery Kabu
Grass Brassius Cilan Erika Gardenia
Poison Janine Klara Koga Roxie
Rock Brock Gordie Roark Roxanne
Water Crasher Wake Cress Misty Wallace
0.1.0︱Sinnoh-Johto Gyms Update
Bug Bugsy Burgh Katy Viola
Fighting Brawly Chuck Korrina Maylene
Ghost Allister Fantina Morty Ryme
Ice Brycen Candice Grusha Pryce
Normal Larry Lenora Norman Whitney
Steel Byron Jasmine Molayne Peony
Extras

CobbleBuilds: Sounds

An optional resource pack that adds battle theme remixes by Zame to the trainer battles.

Special Thanks

Instrafe

His addon Cobbled Trainers was very valuable in helping us understand the Cobblemon NPC system when we started the project.

Inazuma

For making Steel Gym Leader Jasmine's texture.

Join our Discord server to stay up to date with news about the project, troubleshoot issues, submit feedback, or just throw some nice words our way.

Available Versions

CobbleBuilds 0.1.2-hf.2alpha
MC 1.21, 1.21.1, 1.21.2, 1.21.3fabric, forge, neoforge, quilt
July 17, 2026
CobbleBuilds 0.1.2-hf.2alpha
MC 1.21, 1.21.1, 1.21.2, 1.21.3datapack
July 17, 2026
CobbleBuilds 0.1.2-hf.1alpha
MC 1.21, 1.21.1, 1.21.2, 1.21.3fabric, forge, neoforge, quilt
July 1, 2026
CobbleBuilds 0.1.2-hf.1alpha
MC 1.21, 1.21.1, 1.21.2, 1.21.3datapack
July 1, 2026
CobbleBuilds 0.1.2alpha
MC 1.21, 1.21.1, 1.21.2, 1.21.3fabric, forge, neoforge, quilt
June 18, 2026

How to Install CobbleBuilds: Leaders [Cobblemon Addon] on Your Server

1

Order Server

Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).

2

Set datapack Loader

In the panel under "Egg", select the datapack loader and matching Minecraft version (1.21.3).

3

Install Mod

Open the mod browser in the dashboard and search for "CobbleBuilds: Leaders [Cobblemon Addon]". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

datapackfabricforgeneoforgequilt

Minecraft Versions

1.21.3, 1.21.2, 1.21.1 (+1 more)

Server-side

Required

Recommended RAM

6 GB(min. 4 GB)

Frequently Asked Questions

CobbleBuilds: Leaders [Cobblemon Addon] server crashes on startup – what to do?

Most common cause: wrong datapack version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 4 GB RAM is allocated and the loader matches the mod version (1.21.3). You can switch loaders with one click in the panel.

Is CobbleBuilds: Leaders [Cobblemon Addon] compatible with datapack and fabric and forge and neoforge and quilt?

CobbleBuilds: Leaders [Cobblemon Addon] officially supports datapack, fabric, forge, neoforge, quilt for Minecraft 1.21.3, 1.21.2, 1.21.1. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with CobbleBuilds: Leaders [Cobblemon Addon] – how to optimize performance?

Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if CobbleBuilds: Leaders [Cobblemon Addon] consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install CobbleBuilds: Leaders [Cobblemon Addon] with just one click on your server.

Recommended RAM
6 GBfrom €7.800000000000001/mo
Minimum 4 GB | per 5 players
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
GNU General Public License v3.0 or later
Server-side
Required

Supported Versions

1.21.31.21.21.21.11.21