OpenYSM

A mod that modifies the vanilla player model

4.2K Downloads

fabricforgedecoration

Rent Server with this Mod

About this Mod

Open-source alternative for Yes Steve Model

https://github.com/OpenYSM/OpenYSM

OpenYSM is a player model modification mod that provides the same functionality as YSM.

This solves the compatibility issues of YSM, as this mod is compatible with almost all platforms, including macOS, RISC-V, and even mobile phones.

MacOS

alt text

iOS

alt text

Available Versions

OpenYSM 2.6.6 Forgerelease

MC 1.20.1forge

May 30, 2026

OpenYSM 2.6.6 Fabricrelease

MC 1.20.1fabric

May 30, 2026

OpenYSM 2.6.5.2 Fabricrelease

MC 1.20.1fabric

May 9, 2026

OpenYSM 2.6.5.2 Forgerelease

MC 1.20.1forge

May 9, 2026

How to Install OpenYSM 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 (1.20.1).

Install Mod

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

Compatibility

Mod Loaders

fabricforge

Minecraft Versions

1.20.1

Server-side

~ Optional

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

OpenYSM 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 (1.20.1). You can switch loaders with one click in the panel.

Is OpenYSM compatible with fabric and forge?

OpenYSM officially supports fabric, forge for Minecraft 1.20.1. 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 OpenYSM – how to optimize performance?

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