games that were not acquired by Hasbro, such as Facts in Five and Executive Decision, have since been published by University Games in a bookshelf format. Like the 3M series, they are designed to mimic the appearance of a large hardcover book, but instead of a slip-case, the games use a magnetic closing flap. List of games The bookshelf games series included the following games, Unpublished games Options (1970), a game similar to Scrabble using number tiles instead of letters Mad Mate, also known as Crazyhouse Jati (1965), a 2-handed board game (prototype only) Bookshelf series Acquire (1964), 2—6 player board game Backgammon, 2 player board game Bazaar 2 (1967), 6 player token trading game Breakthru (1965), {Hnefatafl} 2 player board game Challenge Bridge (1973), {contract bridge} 4 player tournament simulation card game Challenge Football (1973), 2 player simulation dice/card game Challenge Golf at Pebble Beach (1973), 1—4 player simulation dice game Chess 2 player board game Contigo {Mancala} (1974), 2—4 player board game Events (1974), 4—8 player trivia game Executive Decision (1971), 2—6 player board game Facts in Five (1964), 2+ player trivia game Feudal (1967), 2 or 4 sides, 2 - 6 player board game Foil (1968), 2—4 player card game Go, 2 player board game High Bid (1963), 2 - 5 player card and dice game Image (1971), 2—6 player card game Jati (1965), Jumpin (1964), 2 player board game Mr. President (1965) 2—4 player card game Mr. President (1967) Oh-Wah-Ree (1962), {Mancala} 2—4 player board game Options: Strategic Game of Numbers (1970) Phlounder (1962), 2—6 player board game Ploy {chess} (1970), 2 or 4 player board game Point of Law (1972), 2+ player trivia game Quinto (1964), 2—4 player board game Regatta - 2—6 player board game Stocks & Bonds (1964), 2—8 player card game TwixT (1962), 2 player board game Gamette series Notes: Foil and High Bid were both full size bookshelf games and gamette games. If a game was a recognizable derivative of a classic game, the name of the classic game is in brackets Games where a board is not essential for play are classified as card games or trivia games See also Eurogame, a style of gaming of which Acquire was a popular example List of Avalon Hill games, which the 3M games became part of References External links History of board games