Plot & Poison has a Drow demigoddess of illusion (who is unecessary for this sort of thing) whose temple throws lavish parties with the finest foods and the most attractive attendents, filled with spectacle and pomp. Everybody knows that it's all illusion, and that the 'food' is cheap, spoiled and / or dangerous, and that the lovely pleasure slaves are worn-down and near-death anyway, but they regard it as a 'good party' if all they come away with is an upset stomach...
The Room of Chance. Somewhere in the building is a special room, and it's not marked in any way. Once you enter this room, you find out that it is the Room of Chance, and that you must play a special form of 'Truth or Dare' if you want to leave (or stay, for that matter). The catch is that the 'Dares' are written up by those who have entered the room and performed their own 'Dares.' If you refuse your 'Dare,' you are stripped, beaten and tied up, not allowed to leave the room until the party ends. If you perform whatever task is handed to you (on a slip of paper, drawn from a hat), you get to write your own 'Dare' for the next poor sucker to walk into the room... Due to the 'fun' nature of watching other unsuspecting party-goers forced to humilate themselves (and / or getting to beat the ones who refuse their Dare), many Drow wander room to room, hoping to find the Room of Chance. They know that they will have to perform some, generally objectionable and humiliating, act, but they consider it worth the price, particularly if they are creative minded and have been waiting months to write down the perfect vicious and outrageous 'Dare' to inflict upon whichever unsuspecting fool wanders into the Room of Chance after them! (A 'Dare' can't take the Drow out of the room, since that would defeat the purpose, and some Drow bring specific items with them to parties, 'toys' that will become important if they wander into the Room of Chance and have a chance to Dare someone to do something.)