At Least One HP (ALOH)

A Fabric mod that stops selected players from dying — their health is held at a minimum of half a heart, no matter how hard they get hit. Works from Minecraft 1.21 all the way to 26.2.

Features

• Protected players take damage normally but their HP never drops below 1 (half a heart)
• Knockback, hit animations, and damage effects all still play — it only stops the killing blow
• Totems still work: an immortal player holding a Totem of Undying takes the lethal hit and the totem pops as normal. Without a totem, they simply can't die. (Die with a totem, not without.)
• Simple command system to pick who's immortal
• Server-side — runs on servers, and in singleplayer too
• Requires operator permissions (level 2)

Commands

Supported versions

Built for every Minecraft version from 1.21 through 26.2, including all the releases in between (1.21.1–1.21.11, 26.1, 26.1.1, 26.1.2, 26.2). Grab the file that matches your version.

Requirements

• Minecraft 1.21 – 26.2
• Fabric Loader 0.18+ Or Paper
• Fabric API (if on fabric ofc)

Originally created by Stepan1411 for Nantag — now maintained by Nantag, with multi-version support (1.21 → 26.2), the totem mechanic, and the command system. Go check out Nantag's videos, they're really cool!