Everything needed to publish a Craft++ game, in order.

1. Claim your Craft++ key — register. Keys are permanent and unique.
2. Create a listing — sign in, open My Hub, press Add a game. The Hub assigns yourkey.mygame.
3. Set a Hub password on the listing; the world proves ownership with it.
4. Publish — uncheck Keep this listing private.
5. Connect the world — add the snippet below to your world definition and start Dream Daemon.

world
    hub = "yourkey.mygame"
    hub_password = "your-secret-password"

Dream Daemon registers the listing, heartbeats authenticated player keys, and marks the listing offline on clean shutdown. Stale servers stop being joinable after 90 seconds.