From the publisher: The object of the game is to assemble a "complete" plant or animal cell. This is an educational and fun game simulating the workings of a cell. Each player can complete two actions per turn, which consist of cellular functions like respiration as well as drawing "cell event" cards that simulate important environmental changes. Each player must accumulate as many points as possible, the play is complete when a player has assembled the parts of a complete cell. The player with the most points wins.