Wild Cards "Wild Cards" was adapted into a role-playing game format by Steve Jackson Games. Written by John J. Miller and published in June 1989, the sourcebook used GURPS Supers rules and contained descriptions of sixty of the characters. A supplement titled "Aces Abroad", written by Kevin Andrew Murphy, was released in 1991. Green Ronin Publishing published "Wild Cards Campaign Setting", written by Miller, for its "Mutants & Masterminds" RPG in August 2008; the game debuted at Gen Con that year. Two supplements were released: an adventure anthology titled "All-in" and a character book titled "Aces & Jokers". A four-issue "Wild Cards"
German playing cards decks were created to help players from around the country who were used to different suits. The Skat Congress decks split cards diagonally with one half using the pattern with French suits and the other half using the pattern with German suits. This is not unique to Germany as similar split decks are found in Austria, Switzerland and even France. The Turnierbild pack was created for official Skat tournaments, using the French suited Berlin pattern but with German colours (green Spades and yellow Diamonds). German playing cards German playing cards are a style of playing cards used in many parts