4Play

4Play is an unusual adult-themed board game from 1995 that mixes trivia, challenges and good old-fashioned competition. Rather than building an empire or trading properties, players move around the game board answering questions and taking part in various activities, with the adult content providing the game's main twist. It's the sort of wonderfully strange PC title that could only have come from the '90s, when computer games happily experimented with just about any combination of ideas. If Monopoly feels a little too respectable for your evening, 4Play offers a considerably less innocent alternative.