The game is played by eight people. Four of them (Nanami Tsubomi, Arata Ooinu, Mugi Sarugaya, Moe Kijioka) are considered "NPC"s and can never be the final victors. The game is invalid if any of them win.
Players are given a special wristwatch. In the first step, they choose one of the twelve rooms. Multiple people can choose the same room. Each room is randomly assigned a number from 1 to 12, which is the "score". The score is shown on every person's wristwatch during the second step. Finally, in the third step, players can challenge each other. If your score is inferior to your opponent's, you lose.
|Kakegurui main series|
|The Election • Finger Cutting Guillotine • Nim Type Zero • Active Station • Greater Good Game • Tower of Doors • Hundred Votes Auction • Coin Flip of Fate|
|Gin Rummy • War • Grand Tournament • Rock Paper Scissors Poker • Fasciation Hall|
|Speed President • Three Hit Dice • Magic Dice Game • Coupling Party • Even or Odd • Treasure Hunt • Dice Nim Game • Test Battle Game • Doubt Poker • Hidden Rules • Peeping Tom Baseball Fist • Weight Guess Game • Little Max|
|Blackjack 1:1 • Hand Knife Trick • Guess the Card • Passive Russian Roulette • Improvised Chinchiro • Chicken Circle • Hang Bingo • Kill or Die|