mcl
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Getting Started

Accounts & First Launch

Sign in with a Microsoft account or add an offline profile, then create and launch your first instance.

Open the Accounts panel from the avatar button near the bottom-left corner of the sidebar.

Microsoft account

  1. Select Microsoft in the Accounts view.
  2. Complete the OAuth sign-in flow in your system browser (http://localhost/oauth/callback).
  3. Wait for mcl to finish exchanging credentials and select the active profile.

If you compile mcl yourself, supply your own Microsoft Entra application client ID via MCL_MICROSOFT_CLIENT_ID or .env.local. See Environment & Configuration.

Offline profile

  1. Select Offline in the Accounts view.
  2. Enter a player name to create a local profile for offline single-player or LAN testing.

Creating your first instance

  1. Click + in the instances sidebar to open the creation workspace.
  2. Choose a loader (Vanilla, Fabric, Quilt, Forge, or NeoForge) and Minecraft version.
  3. Click Create & Install, then press Launch once preparation finishes.