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Eleusis

Objective

OBJECTIVEPlayers OFtake ELEUSIS:turns playing cards to a central row. The objectivedealer of(rule-maker) Eleusisdeclares each play as "valid" or "invalid" based on the secret rule. The goal is to legallybe discardthe allfirst yourto handcorrectly ontoguess athe discardrule pileor earn the most points by determiningmaking valid plays.

Setup

  1. Players: 3–8 people. One player acts as the rulesdealer.

    of
    2. play.

    NUMBER
  2. OF

    Deck: PLAYERS:Use  4-8 players

    MATERIALS: Two packs ofa standard 52- card decks,deck paper,(no pencil,jokers).

    a
    3. flat
  3. surface,

    Dealer’s 5Role: god markers, 5 prophet markers, and a prophet token.

    TYPE OF GAME: Abstract Induction Card Game

    AUDIENCE:  10+
    OVERVIEW OF ELEUSIS

    Eleusis is a game of induction. This means you will hypothesis, test and observe the outcomes of your plays and other players’ plays to determine the correct rule of play.

    In each game, there will be a “god” AKA theThe dealer who will secretly come up withcreates a rule for playingvalid yourcard cards.plays This(e.g., rule"Alternate cancolors" or "Prime numbers only").

    • Rules must be anythingconsistent, theynon-arbitrary, wantand possible to follow with the deck.

  4. Starting Cards: Deal 10–14 cards to each player (adjust based on group size).

Gameplay

  1. Initial Play:

    • The dealer starts the game by placing 1–3 cards face up as longthe asinitial allsequence. cardsThese aremust legal to play at some point.

      The remaining players will then try to play cards from their hands to determinefollow the legalsecret rulerule.

      of
      • play
    • through

      Example: experimentation and observation. A player who believes they knowIf the rule mayis declare"Alternate themselvescolors," the dealer might start with 5♦ (red) → 2♠ (black) → J♥ (red).

  2. Player Turns:

    • On your turn, play a prophetcard andfrom takeyour overhand to extend the dutiessequence.

      of
      • god
    • but if they answer incorrectly, they are outcasted and become a normal player again.
      SETUP

      The dealer willimmediately first determinedeclares the rule(s)play for"Valid" (follows the round.rule) Theyor can"Invalid" be(breaks almostthe anythingrule).

      some
        easy
      • examples

        If are:valid: CardsThe mustcard alternatestays in the sequence.

      • If invalid: The card is discarded, and the player draws a replacement.

  3. Rule Guessing:

    • At any time, a player may guess the rule instead of playing a card.

    • If correct: The guesser wins the round and becomes the next dealer.

    • If wrong: The player discards a card and draws a replacement.

  4. Ending the Round:

    • The round ends when:

      • A player correctly guesses the rule.

      • All players run out of cards.

    • If no one guesses the rule, the dealer reveals it and earns bonus points.

Scoring (Optional)

  • Correct guess: 5 points.

  • Valid plays: 1 point per valid card played.

  • Dealer bonus: 3 points if no one guesses the rule.

  • Invalid plays: -1 point per invalid card.

Example Rules

  1. Simple:

    • "Alternate between red and black orcards."

      cards
      • must
    • alternate between even and odd, but face values switch the order. The dealer wants to find a rule that’s the right balance between challenging without being impossible to figure out. The rules will then be written down on the paper and hidden from other players.

      The dealer will then shuffle the cards and deal each player 14 cards. The remaining cards are for the dealer to use, though it is not counted as their hand. The dealer will pull from the top of the remaining deck till they find a card(s) that are legal to play and will start the game with those. Any illegal cards drawn this way will be placed at the bottom of the deck.

      The first player should be chosen randomly.
      GAMEPLAY

      The game is complex in concept but simple in play. On each player’s turn, they will attempt to discard a card(s) to play it. They will play this

      "Each card to the side of the last legal card played. God will then say if it is a legal play or not. If it is it will remain in the legal main sequence of play and the next player may go, but if it is incorrect then the card is moved to a sideline of incorrect cards it should be played under the last legal card played and all cards must be kepthigher in order of play. A god token will be placed on every tenth card that has been played regardless if it’s correct or not.

      Strings and Penalties

      Players may play strings of cards they believe to be correct. If you do this your cards will all be played slightly overlapping to indicate a string. If God determines if any of your cards are illegalthan the wholeprevious stringone."

      is
      • invalidated
    and
    2. removed
  2. to

    Complex:

    the
      sidelines.
    • God

      "Prime will not tell you which card you got incorrectnumbers only that(2, something3, is5, wrong.7, YouJ=11)."

      will
      • be
    • able to tell how many incorrect cards you played though.

      "Each incorrectly played card results in a player getting two additional cards to their hand.

      No Cards to Play

      A player may also declare that they have no legal cards to play. If they do this their hand will be revealed to the table and god may determine if the declaration is true. If it is and the have 4 or fewer cards their cards are returned to the deck and the game has come to an end. If they are correct but have 5 or more cards in hand their cards are placed in the deck and they are given a replacement hand with 4 fewer cards in it.

      If they were incorrect god will pick out a correct card to play and place it in the main sequence. The player then receives an additional 5 cards as a penalty.

      After 30 Plays

      If 30 cards have been played and there has been no prophet, players who play an incorrect card will be eliminated after receiving their two cards. The game will then end once all players have been eliminated or a player has reached zero cards in hand. Prophets may still be declared in these circumstances.

      Prophets

      Prophets are players who believe that they have determined the rule of the game. To become a prophet, you must declare after you have played a card (whether legal or not) but before the next player plays their card. There cannot be a prophet already and there must be ateither leastone 2rank other players beside you and god. You cannot be a prophet if you have already been prophet this round.

      When you successfully become the prophet, you will set your hand down beside you and place a prophet token on the last played card. You will also place a token at every tenth card played after that. You will take over god’s duties of saying whether a play is legalhigher or not. If the expulsion of player has begun it will be delayed for 20 more plays, but all previously expelled players stay expelled.

      The game continues until either all players are expelled, one has emptied their hand, or the prophet calls a card incorrectly.

      If a card is called incorrectly, the prophet is outcasted, all prophet markers are removed, and god places their markers accordingly from their last one. The prophet gets a plentily of 5 cards added to their hand and continues playing as a regular player.

      If a player would be penalized because of a prophet’s incorrect call whether the player was correct or incorrect they are not penalized. If a prophet incorrectly calls a card in a “no legal play” situation, they receive no penalty but still are outcasted.
      END OF GAME

      The round can end in two ways. Either all players become eliminated or a player empties their hand and has no cards remaining. Players are then given a score and the next round will start the dealer becoming the player to the last dealer’s left.

      The game ends whenever everyone agrees, or all players have been god at least once. The winner is the player with the highest score.

      Scoring

      Once a game is over players will count the number of cards remaining in their hand. The highest number of cards in a hand is called the high count and will help determine other players’ scores. A player’s score is their hand subtracted from the high count. A player who has no cards in hand has a score of the high count plus 4 additional points.

      If a prophet was successful until the end of the game, they also score one point for every correct card played after they took over and 2 points for every incorrect card played.

      God’s score is equal to the highest score of all players unless there is a prophet. If there is a prophet god will count the cards up until and including the card with the first prophet marker. This number is doubled. If this score isranks lower than the highestprevious."

      score
      • including

    • "Alternate suits in the prophets,order then♥ this→ is♣ god’s→ score.♦

      If→ ♠."

Tips for the gameDealer

ends
    before

  • Test your rule beforehand to ensure it’s solvable.

  • Avoid overly broad rules (e.g., "All red cards") or rules requiring memorization.

  • Start with a playersimple getspattern to behelp godplayers then they score an additional 10 points at the end oflearn the game.

Variation: Eleusis Express

A streamlined version where:

  • The dealer writes the rule secretly before the game.

  • Players have 3 lives (invalid plays cost a life).

  • The first to guess the rule wins.

Eleusis is a fantastic game for logic lovers and makes a great party challenge! 🃏🔍

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