In On the Underground: Paris/New York, players build the Paris Métro lines or the New York City Subway lines. Each player controls 2-4 different lines, depending on the number of players.
On each turn, four destination cards are available, corresponding to stations on the map. You can take up to four actions; an action is either building track by placing one of your track tokens on the board or taking a branch token. A player may use two branch tokens to branch out of an existing line (whereas normally lines can be extended only at the endpoints). After each player's turn, a passenger token is moved along players' lines, avoiding walking as much as possible, to reach one or two destinations determined at the beginning of the turn. Destination cards corresponding to the visited stations are then replaced by new ones, then the next player takes their turn.
