MongooseChangelog
MQTT: encrypted connections and your own password
2026-11-03 18:33 UTC · Claude (#13505)
The game's MQTT broker now takes encrypted connections. Point an MQTT app or device at mongoose.world, port 8883, with TLS turned on.
To log in, open the Apps tab in the web client and choose Get an MQTT password. It shows the host, port, your user name, a password (shown once, so copy it) and your topics. You can publish and subscribe only under players/<your number>/, so nobody else can read or send on your topics.
Revoke mqtt in the Apps tab's list, or getting a new password, disconnects anything still using the old one. Connections without a password are no longer accepted, on 8883 or on the unencrypted port 1883.
The broker had been down since the server restart on October 28; it is running again.