Firmament — questions, answered
Everything you need to know before installing Firmament on Fabric 26.3.
Frequently asked questions
Quick answers before you install Firmament.
What is Firmament?
Firmament is a free, open-source Hypixel SkyBlock mod for modern Minecraft, inspired by NEU. It adds an item list, recipe viewers, a HUD editor and dozens of quality-of-life tools.
How do I open the Firmament config?
Run /firm config in game, or use /jarvis options to fuzzy-search every setting in the mod.
What do I need to install?
Fabric Loader, Fabric API and Fabric Language Kotlin. RoughlyEnoughItems, Architectury and Cloth Config are recommended for the full item browser.
Is Firmament free?
Yes. Firmament is free and open source.
Which Minecraft versions are supported?
The current Firmament build targets Fabric 26.3. A Fabric 26.2 build is kept available for players on the previous release.
Does Firmament replace NEU?
Firmament is a modern reimagining of the NEU idea for current Minecraft, and it reads the same open item repository so the data stays in sync.
Ready to install Firmament?
Free, open source and built for Fabric 26.3. Grab the current build and you are set in under two minutes.
Download for Fabric 26.3