First launch

1. Choose how to play#

You do not have to sign in. Pick Offline Mode to play singleplayer or on offline-mode servers with no account. Pick Online Mode to sign in with Microsoft. Details are on the accounts page.

2. Pick a version#

Open the Versions page and choose Minecraft 1.21.1 with Fabric. The launcher installs the game and the Java runtime for you. A live console shows progress and any errors.

3. Launch#

Press Launch on the Home page. When the game opens you will see the FireClient title screen.

4. Open the menu#

Press Right Shift in a world, or use the FireClient Menu button on the title screen. See Set up the HUD for the rest.

Tip: The in-game menu only exists for Minecraft 1.21.1 on Fabric. Other versions start fine but do not have it. See Versions, profiles and Java.