
RZGYMS
RZ Gyms is a Cobblemon sidemod that adds a structured gym and league progression with custom trainers, themed teams, badges, and increasingly difficult battles built around Cobblemon, Radical Cobblemon Trainers, Mega Showdown, and Zamega.
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About this Mod
RZ Gyms, also known as Ranzio Gyms, is a progression-focused sidemod for Cobblemon. It adds a custom trainer challenge built around gyms, leagues, badges, and high-difficulty battles.
The mod is designed as a long-term PvE challenge. Players begin with four gym leaders, then progress into stronger league stages: the Nether League, the End League, and the Distortion League. Each stage is harder than the last, with later battles using more competitive teams, doubles formats, Legendary Pokémon, Paradox Pokémon, Mega Evolutions, G-Max forms, Z-Moves, and custom Mega Pokémon from Zamega.
The mod also includes league progress tracking. Defeating league members advances your progress, and completing a league awards its badge. If you lose during a league challenge before earning that league’s champion badge, your progress for that league is reset, so you must defeat its members again.
This mod requires Cobblemon and is built to work with Radical Cobblemon Trainers, Mega Showdown, and Zamega. It is not intended to be used as a standalone mod.
Current progression includes:
-Four initial gym leaders
-Nether League
-End League
-Distortion League
-Custom trainer teams and skins
-Badge and league progress tracking
-Singles and doubles battles
-Mega, G-Max, Z-Move, Paradox, Legendary, and custom Mega-focused teams
Important information before downloading:
-This project is designed for Cobblemon on Fabric 1.21.1.
-Radical Cobblemon Trainers, Mega Showdown, and Zamega are required for the intended experience.
-The mod is still in development.
-We're Still missing the gyms and leagues.
RZ Gyms is best for players or servers that want a difficult, staged Cobblemon challenge with custom boss trainers and a clear progression path.
Credit goes to:
Available Versions
How to Install RZGYMS 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 "RZGYMS". 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
RZGYMS 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 RZGYMS compatible with fabric?
RZGYMS officially supports fabric for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with RZGYMS – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if RZGYMS 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.
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Rent Modded Server
Install RZGYMS with just one click on your server.