Monopoly, introduced in 1935, leads every sales ranking. Chess and checkers are excluded because there is no reliable sales data for either. Here are the ten best-selling board games:

1. Monopoly: 275 million units
2. Scrabble: 150 million units
3. Clue: 150 million units
4. Battleship: 100 million units
5. Trivial Pursuit: 100 million units
6. Backgammon: 88 million units
7. Candy Land: 50 million units
8. Rummikub: 50 million units
9. The Game of Life: 50 million units
10. Othello: 40 million units