How do I install Hephaestus?

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. Opens on Modrinth — not every file is mirrored on our own servers.

What Minecraft version does Hephaestus work with?

The listing gives Minecraft 1.21.1. This is the version stated by the author or source site, not something we verified ourselves.

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Hephaestus

by natdertale · on Modrinth

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Open in MC Java Mods Get it on Google Play →

Hephaestus

Enchance the blacksmithing experience by adding expanded mechanics, such as differential hardening, allowing you to craft high quality tools and weapons.

Features*

Item Quality Tools with higher quality have higher damage and durability.

A Golden Sword with a improved quality

Blacksmith tongs Works just like a bundle.

blacksmith tongs working like bundles

New crafting mechanic Hold click on a fire sources while holding a item in tongs to heat it before using the hammer on a anvil. the heat of the item change the resulting quality upon hit.

the process of making a iron blade

Sieve Find resources in sand.

sieveing

*Non exhaustive

versions before 3.x do not work the same as the mod have been completly rewritten

requires Cardinal Components

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft version listed: 1.21.1
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 — How to install Minecraft Java mods & modpacks walks through it step by step.

Verified by MCModsHub

Ships as hephaestus-3.0.4.jar — drop this file into the mods folder
Download size: 134 KB
Download link checked 30 Aug 2026 — working

These come from our own check of the pack file, not from the source page.

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All Mods for Java All Minecraft Java mods Java mods for 1.21