You can invite friends to play by hosting a room and sending them an invite link. To get the invite link, click the ‘Copy Link’ button in the room setup dialog or in-game. A link to the game will be copied to the clipboard. Send this link to your friends via email or online chat. Alternatively, you can tell your friends the name and password of your room and they can sign in using the ‘Join Room’ dialog.
There’s also a button in the game that allows you to get the room link.