Van Haven Client Core

Client mod for the Van Haven server

30 Downloads

neoforgegame-mechanicsutility

Rent Server with this Mod

About this Mod

Van Haven Client Core

The client mod for the Van Haven Cobblemon server.

Features

Client-side hooks for custom multi-battles
Highly configurable cosmetics able to be added via data and resource pack
(mega showdown gimmicks compatible)

Requirements

Minecraft 1.21.1
NeoForge 21.1.200 or newer
Cobblemon 1.7.3
Accessories 1.1.0-beta.52
GeckoLib 4.8.3
Mega Showdown 1.7.3

KotlinForForge and Architectury come with Cobblemon.

Notes

You need a custom raid mod for this to work outside Van Haven.

Credits

Cosmetics Framework by Pi-Eta (Pi's Cosmetics):

Custom functionality based on Eclipse Core Client:

Available Versions

Van Haven Client Core 1.1.1release

MC 1.21.1neoforge

June 13, 2026

Van Haven Client Core 1.1.0release

MC 1.21.1neoforge

June 13, 2026

Van Haven Client Core 1.0.0release

MC 1.21.1neoforge

June 4, 2026

How to Install Van Haven Client Core on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set neoforge Loader

In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.1).

Install Mod

Open the mod browser in the dashboard and search for "Van Haven Client Core". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

neoforge

Minecraft Versions

1.21.1

Server-side

✗ Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Van Haven Client Core server crashes on startup – what to do?

Most common cause: wrong neoforge 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 Van Haven Client Core compatible with neoforge?

Van Haven Client Core officially supports neoforge for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Van Haven Client Core – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Van Haven Client Core 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.