The most popular board game games

Classic board games like Backgammon, Othello, Checkers were an inspiration to the first wave of developers for their simplicity and appeal. In time, modern board games like Diplomacy, Risk, Monopoly or Scrabble were also adapted in a number of games. And let's not forget the strategy games NOT based on actual tabletop games which gameplay is clearly inspired by board games (like the excellent Archon).