Half Heart Hardcore
Half Heart Hardcore (or 1HP Challenge, alternatively) is a multiplayer challenge datapack, aimed at making the game almost impossible.
I don't know my version or loader
Half Heart Hardcore
Half Heart is a datapack designed to be played in hardcore mode with friends. After being enabled on a world, every player will have only half heart of max health. Everyone's deaths effect each other, if anybody dies everyone dies, so be careful!
This pack is great for a challenging experience with friends or a singleplayer gamemode. You don't necessarily have to play in hardcore, it just makes it so much worse when you die :)
Totems of undying work in a cursed way, thanks to the way I made this datapack. For instance, if there are two players, and one has a totem of undying, that will not save them from the consequences of their friend's death. If the player with the totem dies, their friend is then spared.
WARNING
- Do not use the mod version in existing modpacks, it will apply to any world that is opened, and can technically be fixed, but only if you enable cheats.
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.2, 1.21.3, 1.21.4
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.
- Downloads as halfhearthardcore-1.0-1.21.10.zip
- Download size: 12 KB
- Download link checked 28 Aug 2026 — working
These come from our own check of the pack file, not from the source page.