The service provides listings of servers where players can access the game Never Winter Nights. It allows applications to display links to game environments along with indications of the number of players currently active there. Players can then choose which servers to access based on their preferences for activity level.
API methods support accessing listings of currently active game servers, with current activity levels indicated. Server managers hosting instances of the game can provide information to have their environments listed, and the service polls all servers, dropping listings found to be outdated or offline.