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Download Firmament for Fabric 26.3

The current Firmament build targets Fabric 26.3. If you are on the previous release, a Fabric 26.2 download is available below.

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Get Firmament for Fabric 26.3

The current build is Fabric 26.3. A Fabric 26.2 download is kept below for older setups only.

Firmament for Fabric 26.3

Primary build · Firmament-26.3.jar · Fabric Loader required
Download Firmament-26.3.jar
Firmament for Fabric 26.2 LegacyOlder setups only · Firmament-26.2.jar
Download
RequirementsFabric Loader, Fabric API and Fabric Language Kotlin
PriceFree — no account, no payment
  1. Install Fabric LoaderSet up Fabric Loader for Minecraft 26.3 from the official installer.
  2. Add the prerequisitesInstall Fabric Loader, Fabric API and Fabric Language Kotlin into your mods folder.
  3. Drop in FirmamentPlace Firmament-26.3.jar into your mods folder.
  4. Configure in gameLaunch the game and run /firm config to open Firmament.
Requirements

What you need

RequirementDetails
MinecraftFabric 26.3 (current) or Fabric 26.2 (legacy)
LoaderFabric Loader, Fabric API and Fabric Language Kotlin
AccountNone — Firmament is free with no sign-up
SideClient-side only

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