Black or Red is a simple guessing game.
Each player takes a turn in order, drawing a single card from the top of the dealer deck by double-clicking it. Before looking at the card, they must call either "Black" or "Red" indicating their guess as to the color of the card. If they guess correctly their turn is completed and the next player draws. If they guess incorrectly they are required to draw and guess again. They keep drawing until they guess correctly.
Players score 1 point for correct guesses and -1 point for incorrect guesses. The game ends once the dealer deck is exhausted. At the end of the game the player with heighest points wins.