CurseForge · Minecraft mod
Chest Cavity Legacy
Chest Cavity Legacy is a port of the Chest Cavity mod for Minecraft 1.12.2 Forge
Quick answer
Which Chest Cavity Legacy release should I use?
Chest Cavity Legacy ChestCavity-Legacy-1.0.0.jar targets 1.12.2 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is Chest Cavity Legacy required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Chest Cavity Legacy ChestCavity-Legacy-1.0.0.jar need?
ChestCavity-Legacy-1.0.0.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Chest Cavity Legacy without breaking your instance.
Built for Chest Cavity Legacy ChestCavity-Legacy-1.0.0.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use ChestCavity-Legacy-1.0.0.jar. It targets 1.12.2 with Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside ChestCavity-Legacy-1.0.0.jar. It opens that exact file at the source.
About this project
What does Chest Cavity Legacy add?
Chest Cavity Legacy
Description
Chest Cavity Legacy is a port of the Chest Cavity mod for Minecraft 1.12.2 Forge.
The core gameplay remains faithful to the original mod, introducing a highly customizable chest cavity and internal organ system for all living entities in the game. Every creature possesses an interactive chest cavity inventory representing their internal organs and anatomy. Players can use a Chest Opener to inspect, dissect, or replace organs within entities, shaping their attributes and abilities through an extensive organ scoring system.
Certain organs inside the chest cavity grant active abilities to the host:
- Default Key
R: Open the Ability Wheel to quickly select which ability to activate. - Default Key
X: Activate the currently selected ability. - Abilities have independent cooldowns.
CraftTweaker Integration
The mod provides comprehensive CraftTweaker support:
- Custom Organ Attributes: Freely register new organs, define pseudo-organs, and modify organ scores for any item via ZenScript.
- Custom Chest Cavity Types: Register new chest cavity types, set default organs, cavity dimensions, base scores, etc.
- Entity Assignment: Bind or unbind chest cavity types to/from any modded or vanilla entities.
- Dynamic Cavity Sizes: Not limited to 9×3; customize arbitrary cavity grid sizes for different creatures via scripts with adaptive centered UI layout. Also supports dynamically resizing cavity dimensions in-game.
- Custom Abilities & Events: Script custom active and passive abilities, and listen to organ equipped, unequipped, and ability activation events.
For detailed CrT documentation and examples, please refer to [ChestCavity-CRT-API.md] in the GitHub repository.
Requirements
- ModularUI (0.4.0+)
- CraftTweaker
- MixinBooter
Project description from CurseForge.
Pick your setup
Chest Cavity Legacy by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Chest Cavity Legacy versions and loaders
ChestCavity-Legacy-1.0.0.jar
20 Sept 2026
Looking for an older file? The official CurseForge project page is in Resources.