Hephaestus-1.20.1-3.6.4.304.jar is a beta file of the Minecraft mod Hephaestus Fabric for Fabric, made for Minecraft 1.20.1. It was published on November 14, 2025 and is 26.5 MB in size. Pre-release builds can contain bugs — back up your world before installing. For the full description, screenshots and every other version, visit the Hephaestus Fabric mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
