Heartcore

Heartcore

A configurable Minecraft Hardcore mod that removes hearts when you die, with a few other added features.

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1.2K Downloads
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Screenshots

Regain Hearts
Respawn Button
Config

About this Mod

Heartcore

Heartcore is a twist on Minecraft's Hardcore mode. Instead of a single death ending your world, every death costs you a maximum heart. Run out of hearts, and you die forever.

Features

  • Lose Max Hearts on Death: Each time you die, you permanently lose a configurable number of hearts.
  • Regain Hearts with Items: By default, enchanted golden apples restore a heart—but you can customize or disable healing items entirely.
  • Healing via NBT: Any food item can restore hearts if it includes the heartcore:heart_modifier CustomData NBT tag. This tag accepts integers, allowing precise control over how many hearts are gained or lost.
  • Random Respawn Option: Players can respawn at a random location after death, with configurable min/max radius. Caves are now excluded to improve safety.
  • Configurable and Dynamic: Change values like heartsPerHealingItem, minHearts, and maxHearts, and enforce max health limits for returning players with enforceMaxHealth.
  • Server Commands:
    • /heartcore config – Adjust settings live as a server operator.
    • /heartcore giftheart <player> – Let players share their max hearts with others.

Multiplayer Friendly

  • Only the server host or world owner needs to install Heartcore.
  • The only client side feature is changing the spectator button to say respawn on servers

Requirements

Available Versions

1.0.2+1.21.5release
MC 1.21.5fabric
May 21, 2025
1.0.2+1.21.4release
MC 1.21.4fabric
May 21, 2025
1.0.2+1.21.3release
MC 1.21.3fabric
May 21, 2025
1.0.2+1.21.2release
MC 1.21.2fabric
May 21, 2025
1.0.2+1.21.1release
MC 1.21.1fabric
May 21, 2025

How to Install Heartcore on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.5).

3

Install Mod

Open the mod browser in the dashboard and search for "Heartcore". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.5, 1.21.4, 1.21.3 (+3 more)

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Heartcore server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.5). You can switch loaders with one click in the panel.

Is Heartcore compatible with fabric?

Heartcore officially supports fabric for Minecraft 1.21.5, 1.21.4, 1.21.3. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Heartcore – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Heartcore consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install Heartcore with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
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1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
MIT License
Server-side
Required

Supported Versions

1.21.51.21.41.21.31.21.21.21.11.21