Only One Heart

Only One Heart is a lightweight Fabric challenge mod for Minecraft Java Edition 26.2.

It limits the player to one heart by default, with an optional half-heart mode. The remaining heart stays still instead of constantly shaking at low health. The mod can also be turned off without removing it.

Features

• One Heart mode

• Optional Half Heart mode

• Off mode that restores vanilla health and HUD behavior
• Removes the low-health heart bounce
• Absorption hearts from golden apples and similar effects still work
• Temporary Health Boost and other max-health modifiers remain functional
• Supports Survival, Creative, Spectator and Hardcore
• Configuration through Mod Menu or commands
• Settings persist between sessions

Commands

• /ooh
• /ooh status
• /ooh help
• /ooh mode one
• /ooh mode half
• /ooh mode off

The commands can be used in singleplayer without enabling cheats.

Configuration

Mod Menu is optional. All modes can also be selected using commands.

The configuration is stored in:

config/onlyoneheart.json

Health interactions

The mod limits the player's base maximum health.

Absorption hearts from golden apples remain available. Health Boost and other temporary max-health modifiers can add health above the selected base limit.

Turning the mod off restores the normal ten-heart maximum. It does not automatically heal missing health.

Requirements

• Minecraft Java Edition 26.2
• Fabric Loader 0.19.3 or newer
• Fabric API
• Java 25
• Mod Menu 20.0.1 or newer is optional

Testing status

Extensively tested in singleplayer. Dedicated multiplayer servers have not been tested yet.

License

MIT License

Created by passo.