Players begin with an empty board, 10 red or 10 black chips, and a hand of 4 cards consisting of one Start, Movement, Interaction, and Score card that were dealt to them from shuffled decks of each of these types of cards.
The players play their Start card and place their pieces on the board according to its instruction. Players then take turns playing one card per turn. The card they play either adds a rule of movement, interaction, or score to the game, or can be used to override a rule of movement, interaction, or score that was played before.
After playing a card each player moves their pieces according to one of the Movement rules in play, and has their pieces interact with their opponent’s pieces according to one of the Interaction rules in play.
After each turn the players replenish their hand by drawing a card from their choice of Movement, Interaction, or Score card decks.
After 8 rounds players calculate their score according to the Score cards they have put into play. The player with the highest score wins.