Health Extended

Instead of one shared pool of hearts, the body is divided into functional parts: the head, the torso and the limbs, each with its own health. Damage applied to a part lowers only that part's pool, and parts carry different weights, so the torso and head count for more than the limbs. When a head's health reaches zero the player dies, and a large blow to the head can still end the game outright. Other parts that reach zero apply a debuff instead of ending the run, such as reduced strength when a arm is lost, which makes losing a limb matter without making it fatal by itself.

Status effects are called hediffs here, short for health differences. They are persistent medical conditions tied to the body, such as a wound, and a condition like a heart attack builds up slowly, adding a stacking suffocation effect until it is treated or the player dies. The vanilla health bar above the hotbar still shows the overall pool across all parts, and the new details appear in the health panel of the existing inventory screen, so no separate menu or hotkey is needed. The mod extends vanilla status effects rather than replacing them, and it includes compatibility work for other mods.

Health Extended runs on NeoForge only and is published for 1.21.1. Servers that run it need every player to install it too. The mod is released under a custom license and is not open source, and its source code and issue tracker are public.