
Vivillon Overhaul (Cobblemon)
Overhauls Vivillon and its pre-evolutions to fix the many issues regarding them (Cobblemon).
Screenshots






About this Mod
Vivillon Overhaul
Massively reworks Vivillon and its pre-evolutions to properly reflect the games with how they evolve, aswell as fixing many key issues like getting multiple different Vivillon patterns in one biome, not being able to read Vivillons unique dex entries, Scatterbug not being able to spawn in forest biomes with tall trees, and more! Comprehensive list of changes are located in the changelog.

Compatibility
Currently only has explicit support for Terralith, WWEE, BOP, BWG, Nature's Spirit, and more (full list in changelog), aswell as vanilla biomes, Vivillon and its pre-evolutions will only spawn in biomes with explicit support.

Can I install this on my current world?
Yes, but your current Scatterbugs and Spewpas will only be able to evolve into the Meadow pattern Vivillon.

Available Versions
How to Install Vivillon Overhaul (Cobblemon) on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set datapack Loader
In the panel under "Egg", select the datapack loader and matching Minecraft version (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "Vivillon Overhaul (Cobblemon)". 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
Vivillon Overhaul (Cobblemon) 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 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 Vivillon Overhaul (Cobblemon) compatible with datapack and fabric and forge and minecraft and neoforge and quilt?
Vivillon Overhaul (Cobblemon) officially supports datapack, fabric, forge, minecraft, neoforge, quilt for Minecraft 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 Vivillon Overhaul (Cobblemon) – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Vivillon Overhaul (Cobblemon) 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 Vivillon Overhaul (Cobblemon) with just one click on your server.