Bestiary is a simple card driven two player game in which players create chimeras by adding different creature parts. Drawing creature part cards from a common deck, players take turns to put them into play. When a card is played, a control marker is placed on it. Creature parts can be tails, middle parts or heads. A chimera is completed when it has a tail and a head. Several chimeras may be incomplete at the same time. A player may choose to discard a card and draw a new one instead of playing a card, or may choose to pass. When two players pass consecutively or the deck is depleted, the game ends. Players then earn score according to the sum of values printed on the creature part cards they played which form completed chimeras.