Losing My Marbles!

Build your very own Marble Run with plenty of unique marbles and track pieces. Fully data-driven!

4.3K Downloads

fabricdecorationgame-mechanicsminigame

Rent Server with this Mod

Screenshots

About this Mod

Losing My Marbles is a mod that adds track pieces and marbles to Minecraft so you can build your very own marble run.

Each marble has full physics simulation, powered by Jolt Physics. They roll and bounce around like real ones!

Losing My Marbles currently features 11 unique track pieces and 30 different marble types. If you get bored of the marbles, don't worry! Marble types are fully datadriven, and you can make your own with a datapack.

Available Versions

0.1.0+build.180-mc1.21.8-fabricrelease

MC 1.21.8fabric

August 26, 2025

0.1.0+build.152-mc1.21.8-fabricrelease

MC 1.21.8fabric

August 18, 2025

How to Install Losing My Marbles! 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 (1.21.8).

Install Mod

Open the mod browser in the dashboard and search for "Losing My Marbles!". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.8

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Losing My Marbles! 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 (1.21.8). You can switch loaders with one click in the panel.

Is Losing My Marbles! compatible with fabric?

Losing My Marbles! officially supports fabric for Minecraft 1.21.8. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Losing My Marbles! – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Losing My Marbles! 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.