In the game, the players are working in a laboratory attempting to acquire fluids of specified colors in order to mix them and fulfill the tasks assigned by the professor. Each round is divided into three phases: First, the influence of players is determined. In the second phase, each player gets to choose either a laboratory card or a new task card, and in the third phase players try to complete a task. To do so, a player has to discard lab cards that match the number and color of flasks on the task card. Secondary colors (purple, orange, and green) can be created by combining cards with primary colors (red, yellow, and blue). After 12 rounds the points of the completed tasks are counted. The player with the most points wins the game.
