HardenedCore

HardenedCore

Extends early game by replacing wooden and stone tools with flint, gating iron smelting behind a blast furnace, and adding a new ore fragment progression system.

by
33 Downloads
fabriceconomyequipmentgame-mechanics
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Screenshots

Mining copper ore with a flint pickaxe
Every item added
Mining tin ore with a flint pickaxe
Advancements
Player with a flint axe

About this Mod

HardenedCore

HardenedCore makes Minecraft early game feel more deliberate and rewarding by removing shortcuts that experienced players skip anyway and replacing them with a coherent progression system.

Changes

Tools

Wooden and stone pickaxes and axes are gone, along with all stone tier tools included. Instead, craft a Flint Pickaxe from flint, this bad boy mines at stone tier and is your primary early game tool. Flint axes are also available as a crafting alternative to wooden axes. Wooden shovels, swords and hoes are untouched.

Ore Fragments

Mining all stone tier ores with a flint pickaxe drops a raw ore fragment instead of the usual ore. Fragments smelt in a furnace into a single nugget.

Blast Furnace

Raw ores and ore blocks cannot be smelted in a regular furnace at all. A blast furnace is required for ore smelting. This makes the blast furnace a meaningful milestone rather than a late convenience.

Progression Path

  1. Collect flint from gravel
  2. Craft a flint pickaxe
  3. Mine ores and collect raw fragments
  4. Smelt fragments to nuggets
  5. Accumulate 45 nuggets for 5 iron ingots to build a blast furnace
  6. Normal iron progression resumes

Mod Compatibility

  • Ore blocks from other mods are automatically blocked from furnace smelting if they use conventional tags
  • Tin ore fragment support included out of the box for Bronze mod
  • Modpack authors can extend hardenedcore:crafting_blacklist and hardenedcore:furnace_blacklist tags to add custom compatibility

For Modpack Authors

Two item tags control recipe removal at load time:

  • hardenedcore:crafting_blacklist includes items whose crafting recipes are removed entirely
  • hardenedcore:furnace_blacklist includes items that cannot be smelted in a regular furnace

Add any item to these tags in your datapack to extend HardenedCore's restrictions to modded content.

Available Versions

HardenedCore 1.0.1release
MC 1.21.1fabric
April 5, 2026
HardenedCore 1.0.0release
MC 1.21.1fabric
April 4, 2026

How to Install HardenedCore 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 (1.21.1).

3

Install Mod

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

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.1

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

HardenedCore 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 (1.21.1). You can switch loaders with one click in the panel.

Is HardenedCore compatible with fabric?

HardenedCore officially supports fabric for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with HardenedCore – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if HardenedCore 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 HardenedCore 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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NVMe SSD Storage
DDoS Protection included

Details

License
GNU Lesser General Public License v3.0 or later
Server-side
Required

Supported Versions

1.21.1