Pinball Machine Themes Tic-tac-toe History Tools Parent themes: Games Games (9) X's & O's Bally, 1983 OXO Williams, 1973 Square Head Gottlieb, 1963 Egg Head Gottlieb, 1961 Tic-Tac-Toe Williams, 1959 Happy Days Gottlieb, 1952 3 In Line Scientific Machine Corporation, 1950 School Days Gottlieb, 1941 Tit For Tat Chicago Coin, 1935