Murder mystery board game Cluedo is the latest addition to the Instant Win Games section at The National Lottery website. There's a top prize of £50000, and by solving the clues you could be a Cludeo winner. Roll the dice to move around the board and then enter the rooms to collect Suspects, Weapons and Solution cards. It costs £2 a card and you must be registered with The National Lottery to play. According to the stats you have a 1 in 3.31 of winning a prize on this game.
If you don't want to play for real then you can play for fun and free (but no prizes). This is a great way to get to know the game and see whether you're happy to part with a few pounds to play first! Do note though that you do need to be registered to play for free.