If you're playing with others, they can join your game by using the exact same room name, or by copying the room link. The room name can be anything you like (ex: 'joan's room').
To get started, enter a name for yourself (ex: 'azul-player-100') an a room name. In Azul, the goal is to score more points than your opponents by tiles in order to try and build the highest scoring 'wall.' Azul supports 2-4 players.