Attention: This is a donation app the proceeds goes to the association "Interessengemeinschaft Oschütztal-Viadukt e. V. ". For more information, visit: www. Viadukt-weida. De. Many Thanks. The app "Bridgequartett FREE" has the same functionality and is free. Bridgequartet - Top Trumps! Bridgequartet is a super-trump/top trumps/mega-trump quartet card game.