Snowdonia: Seasons is a promo pack of six cards that were printed-on-demand for the UK Games Expo 2016: 01-Spring thru 04 - Winter -- Four new contract cards (a couple of Start Player manipulators / use Iron Ore directly as Track / buy a Train cheaply) Seasons -- Two double-sided cards depicting the Months and Seasons of the Year; each Season modifies a main element of the game (Surveyor movement, the Build action and using your 3rd worker) as well as applying new Weather rules!