1HP

This datapack gives you the ability to play with only Half a Heart, which makes survival extremely challenging. It's designed for players who want to push their limits and experience Minecraft in a whole new way.

How to Install

Download the 1HP datapack .zip file or folder.
Place it inside your world's datapacks/ folder: .minecraft/saves/<Your_World>/datapacks/
Launch the world.
Your health will instantly be reduced to 1 HP (0.5 hearts)!

Features

Sets player max health to 1 (half a heart).
Affects the current player only.
Not yet compatible with multiplayer.
Lightweight and efficient.

Challenge Ideas

You can make survival even harder by combining this datapack with:

Hardcore mode
No armor rules
Timed survival goals (e.g. survive 1 hour)
Mob difficulty increase datapacks

Compatibility

Minecraft version: 1.21.5
Singleplayer only (multiplayer support planned for future versions)
Compatible with most datapacks unless they directly change player health