Empty board, 1 train in each player’s left corner grid point, 3 discs and 16 sticks (rails) per player.
Move your train 1 grid point in the direction (if not occupied by another train) AND lay a rail behind (if not already a rail of your color there).
Place a disc (station) on the train’s grid point (if not already a disc of any color there).
When a player places her last rail, the other players get 1 more action before the game ends. For each opponent rail connected to a station, both the station owner and the rail owner gets 1 VP. The player with the most VP wins.