Ultimate Truth Or Dare
As demonstrated in "The Warmest Winter, Day 09"
What You Will Need:
A bottle from an alcoholic beverage (your choice). You may even have more than one, depending on how much you would like people to drink.
Index cards (at least 9)
Shot glasses, at least one per person. Preferably one for every shot in the game.
A timer, preferably digital.
Paper and pencil, to keep track of certain rules.
One set of gaming dice (one die each with twenty sides, twelve sides, ten sides, eight sides, six sides, and four sides, called a d20, d12, d10, d8, d6, and d4).
Players (of course).
As with any drinking/sex/party game, every person should be open to doing whatever comes up, with anyone else present, especially given the random nature of the game. If this is not the case, agree on rules adjustments prior to the game.
One player will sort of act for the game in a role similar to that of a Dungeon Master in a D&D game. They set the timer, write down necessary notes, announce new rules, and adjudicate as needed. It is most useful for this person to go first in a round, to demonstrate how the rules work each round, for those not yet familiar (or are quite familiar but also drunk).
Some preparation is required. As host, calculate how drunk you want everyone to be and work backwards. X amount of alcohol per person, times Z number of people, given that booze Q that I want to serve is Y proof, there will be... K number of shots.
Example: A 200-mL bottle of Eiswein is to be split among four players. It's a fairly hefty proof, and the host wants the players to be tipsy and uninhibited, but not drunk and reckless. So, half-shots. This makes for thirteen shots, with a little extra.