Halloween Detective Game - quite a few rules but easy to play
Pack of cards
Sort through a deck of cards and find the following - an Ace, a Jack, a King, a Queen, and number cards for the amount of remaining people. (i.e.-if six people were playing, you would need two number cards.) Each card means something - the Ace is the murderer, the Jack is the detective, the King is the detective if the Jack dies, and the Queen is the detective if the Jack and the King both die. The number cards just walk around for the beginning of the game. Tell the players that all they need to worry about for the time being is if they get the Ace. Give a card to everyone. Nobody looks at each other's cards. Once they have their cards and have seen them, put them down somewhere out of the way for the next round.
Turn off all the lights so that it's completely dark. Everyone begins to spread out and walk about slowly, and try not to laugh or talk. Players aren't allowed to stick together in this game. During this time, the murderer is seeking 'victims'. When she/he finds someone alone, they quietly brush their shoulder and whisper, "You're dead." As an alternative, the murderer could clamp their hand over the persons mouth to avoid the person screaming, and then whisper "You're Dead".
The dead player drops to the ground, dead, and can not speak or move. The murderer may or may not hide the person they just killed in a hiding place. It is not advisable, however, due to the risk involved in getting caught. When a player sees a person lying down, they ask, "Are you dead?" The person simply nods 'yes' or shakes their head 'no', but they must tell the truth. If they nod, the person who found them shouts "Murder in the Dark!" and the lights are put on.
The murderer may not murder victims any longer and all the alive players assemble where the dead person was found. The players who are not present are noted as dead. The detective sits in a chair in front of all the others who are on the floor. He/she asks questions to each person. (i.e. where were you when someone yelled Murder in the Dark? Who do you think is the murderer and why? etc.)
When the detective has enough information and think they are ready, they say "Final Accusation" and ask one person-"Are you the murderer?" It is very important that the person answers TRUTHFULLY at the final accusation. If they are the murderer, then they must say yes. If correct players pick new cards and the game starts again. If wrong then turn out the lights and carry on.