Cave (Johnson) Sounds

A sound mod that replaces all cave ambiance with random Cave Johnson quotes. All Hail JK Simmons! !

101 Downloads

fabric

About this Mod

This is a simple sound replacement mod that changes all of the ambient cave noises to quotes from Cave Johnson, primarily from Portal 2. There are a few lines from the Perpetual Testing Initiative, and a select few from other DLCs.

This mod is still in development, so here are some things I would like to add:

Echo / distance in the sound effects
Subtitles
Different chance for each voiceline
Location-based lines
Official ports to Neoforge and Forge.

For now, use Sinytra Connector and Forgeified Fabric API to hear Cave in your Forge and Neoforge modpacks.

Available Versions

Cave (Johnson) Sounds 1.0.0alpha

MC 26.1.2fabric

May 12, 2026

How to Install Cave (Johnson) Sounds 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 (26.1.2).

Install Mod

Open the mod browser in the dashboard and search for "Cave (Johnson) Sounds". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

26.1.2

Server-side

~ Optional

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Cave (Johnson) Sounds 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 (26.1.2). You can switch loaders with one click in the panel.

Is Cave (Johnson) Sounds compatible with fabric?

Cave (Johnson) Sounds officially supports fabric for Minecraft 26.1.2. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Cave (Johnson) Sounds – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Cave (Johnson) Sounds 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.