Open Seats
Game creators can add Open Seats to their game in the place of a player. Any game with open seats is considered an Open Game. All open games are listed on the Open Games Tab, which is located under the main Multi-Player tab.
Open seats are a great way to meet new players or for getting a new game up-and-running quickly.
To make an open game, just use the "Add Open Seat" button on the last step of the Create Game Wizard.