cobblemon server gym league
A cobblemon, player run gym system!
Screenshots


About this Mod
CobbleLemon Gym League
CobbleLemon Gym League adds a full server-side gym league system for Cobblemon servers, with player challenges, badge tracking, seasons, leaderboards, Elite Four progression, Champion battles, and an in-game management GUI.
Players can open the Gym League menu with /gym or /gymgui to view active league staff, challenge Gym Leaders, track earned badges, check leaderboard standings, and follow their progress through the league. Gym Leaders, Elite Four members, and Champions can accept challenges, manage active matches, and use configured arena positions for clean battle starts.
Features
- Gym Leader, Elite Four, Champion, and Challenger roles
- Seasonal badge progression
- Configurable badge definitions and required badge counts
/gym challenge <player>and/gym accept <player>challenge flow- Automatic Cobblemon PvP battle setup using Gen 9 singles
- Configurable battle level, request timeout, result broadcasts, and challenge rules
- Leaderboard based on badges, Elite Four progress, and Champion status
- Admin GUI for roles, seasons, badges, arena setup, and config reloads
- Arena teleport positions for challengers and league staff
- Optional Exposure photograph previews for Gym Leaders
- Optional CobbleLemon Trainer Hub integration for badge cosmetics, titles, and trainer card stats
- Optional LuckPerms integration for syncing league groups
Why Use It?
This mod is built for Cobblemon servers that want a structured player-run league without tracking everything manually. It gives staff tools to run seasons, assign leaders, award badges, and manage progression while giving players a clear path from Gym battles to the Elite Four and Champion.
Commands
/gym- Open the Gym League GUI/gymgui- Open the Gym League GUI/gym challenge <player>- Challenge a Gym Leader, Elite Four member, or Champion/gym accept <player>- Accept an incoming challenge/gym badges- View your badge and Elite Four progress/gym admin ...- Admin role, season, badge, and reload tools
Important Setup Notes
This mod is intended for Fabric Minecraft 1.21.1 with Cobblemon. Install it on the server and on clients that should use the GUI.
Required:
- Fabric Loader
- Fabric API
- Cobblemon
- Fabric Permissions API
Recommended:
- LuckPerms, for role/group syncing
- Exposure, for gym preview photographs
- CobbleLemon Trainer Hub, for trainer card integration
Before running a public league, configure config/cobblelemon_gym_league/settings.json. Change the default admin password, set admin allow-list entries as needed, configure arena positions, and define your seasons and badges.
Available Versions
How to Install cobblemon server gym league on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "cobblemon server gym league". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
cobblemon server gym league server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.
Is cobblemon server gym league compatible with fabric?
cobblemon server gym league officially supports fabric for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with cobblemon server gym league – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if cobblemon server gym league 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 cobblemon server gym league with just one click on your server.