The login screen is the screen where players can log in to play Transformice, play as a guest or create a new account. Other options include changing your language and spawn room, turning on/off music, sounds and the bell at the beginning of each round and fullscreen. The game version is displayed at the bottom right.
The background on the login screen sometimes relates to something that is taking place, such as an event. Since 2016, an adventure banner is shown at the top right during every event.
The current login screen was released on 15 April 2014 (V1.145b).
The login screen used to show the number of players online.