Bobby Legacy

Bobby backported to 1.12.2.

1.7K Downloads

forgegame-mechanicsoptimizationworldgen

Rent Server with this Mod

Screenshots

About this Mod

This is Bobby ported to 1.12.2.

Bobby works by caching loaded chunks in a folder called /minecraft/.bobby. Real chunks sorround the player and cached chunks beyond the simulation distance are not tickable. This mod can be used on client and server.

settings

Requirements: MixinBooter

Incompatibilities: Nothirium, Particle Culling, Entity Culling, REID, Entity Distance and Dynamic View are not compatible. This mod does some of what these mods do already. Any mods which involves culling should be disabled.

If you have Universal Tweaks disable this line:

B:"Frustum Culling"=false

How to Set Up:

I:renderDistance=

. Edit this line to extend the render distance past default.

I:simulationDistance=

. Edit this line to extend or reduce the active chunk radius.

Demonstration:

100

Available Versions

Bobby Legacyrelease

MC 1.12.2forge

February 17, 2026

Bobby Legacyrelease

MC 1.12.2forge

November 19, 2025

Bobby Legacyrelease

MC 1.12.2forge

November 18, 2025

How to Install Bobby Legacy on Your Server

Order Server

Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).

Set forge Loader

In the panel under "Egg", select the forge loader and matching Minecraft version (1.12.2).

Install Mod

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

Compatibility

Mod Loaders

forge

Minecraft Versions

1.12.2

Server-side

✗ Unsupported

Recommended RAM

6 GB(min. 4 GB)

Frequently Asked Questions

Bobby Legacy server crashes on startup – what to do?

Most common cause: wrong forge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 4 GB RAM is allocated and the loader matches the mod version (1.12.2). You can switch loaders with one click in the panel.

Is Bobby Legacy compatible with forge?

Bobby Legacy officially supports forge for Minecraft 1.12.2. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Bobby Legacy – how to optimize performance?

Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Bobby Legacy 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.