Dam-it! is a strategy game in which players claim circles on the playsheet in an attempt to form lines of 3, 4, or 5 circles in length. The game is won by the first player to succeed in forming either eight 3-circle lines, five 4-circle lines, or a single 5-circle line. Players attempt to claim circles that not only complete lines for scoring, but also 'dam' the opponent’s ability to score.