Railroad Ink: Sky Expansion Pack

Yes. At the beginning of each round, roll the relevant Expansion dice along with the 4 Route dice; you must use all 4 Route dice, but you may choose not to draw Airline dice results (p. 1–2).

Each round, place the two Weather symbols in the lower-right corners of two spaces where you drew Routes that round, including Special Routes. You can’t add Weather to spaces from earlier rounds (p. 1).

Each Weather type scores 1 point per space in its largest area of orthogonally adjacent spaces. If areas of different types touch orthogonally or diagonally, they don’t count for scoring (p. 1).

Airline dice results don’t have to connect to existing Routes or Airline dice, and Airways can’t connect to regular Routes or Exits. Airports connect Airways to regular Routes: an Airport connects automatically to Routes leading into its space, including Routes drawn there later (p. 2).

The Airline Expansion game lasts 6 rounds (p. 2).

Your Longest Airway scores 2 points per space, counted from an edge or Airport to an edge or Airport; lose 2 points for each open-ended Airway Route and 4 points for each Airport not connected to any Airway Route (p. 2).