IMPORTANT NOTE: I had this idea going around in my head but was not sure to write it since it required a LOT of scripting and other stuff like creating items ( the cards you will see below ). You can trim this idea into whatever you want it to be. I hope its a good starting seed for your story : )
IMPORTANT NOTE 2: The grammar of my explanation may not be clear enough so I apologize for that beforehand.
A group of friends decide to camp at a forest for a few nights. They make the camp, set up the materials, and sit around the fire for telling some ''spooky'' stories. One of the friends leaves the group to take a piss in the night in the forest. Time goes on and the people who were sitting around the fire had lots of fun, but one of them notices that the guy who went to take a piss didn't return. They call out for him but there's no reply. They decide to take some flashlights and find the missing guy.
After some time, one of the member of the group finds 2 sets of foot tracks and calls for the others. They follow the tracks and come upon a circus, with light bulbs that are shining brightly all around it. The group decides to go in after some arguing and they are greeted by a rather funny and charming clown who greets them and invites them to a game, some of the people in the group want to play games and they refuse to continue to search for that guy. The group breaks into two after each party argue their beliefs, After the argument, people who wanted to play games go to different zones and start playing. Others, however, are worried about the missing guy. One of the members of the group asks the clown if they saw their friend and the clown on reply's with a giggle.
Suddenly, all the light bulbs around them turn off, leaving everyone in complete darkness. A sleep gas is released and all the members fall asleep. When they wake up, they notice that they are sitting around a round table. And to some peoples horror, the missing guy is ganging from the ceiling above them, he looks pretty dead.
The clown explains the rules of the card game they are going to play. ( You can chose these, but remember, this is a card game and there's one single, unchangeable ( you can change it ) rule. The clown will spin in the middle with a moderate sized box in front of him ). Whoever gets picked randomly by the clown, will either:
1. You ''might'' die when a rifle pops out of the box and shoots the randomly chosen player.
2. Will receive a positive/negative/neutral card, examples:
- Protection Card (Positive): Grants a shield which protects you, can be used only once.
- Guardian Angel ( Neutral ): You can give a player shield for that round.
- Death ( Negative ): If the clown selects you, he will shoot you and you will die. If you have three of these cards, you will get killed immediately.
- Space for Ideas ( ??? )
3. Will get a random event:
- This can be bomb where the player needs to defuse it.
- Pass Around the Bomb where the player needs to give the bomb to someone else who will then give it to someone else so on until the bomb explodes at a random time.
- Lights Out where a random player will receive a gun and can shoot any other player
- Vote Him Out where players chose someone to eliminate
- Space for Ideas ( ??? )
Finally the clown offers a prize: one million dollars to the last survivor. He blows a whistle, laughs, and shouts, “May the games begin!