Dewey Decimal Card Game - Need a fun way to review the Dewey Decimal System with your students? Then this game is for you. This is a Dewey card game and is played just like the game UNO but with a slight twist. Every time a card is played the student must read the book title on the card and say what Dewey category the book belongs in. There are detailed directions included on how to play. Played with 2-4 players.