You are a team of researchers working for the Institute for Wildlife Conservation (IWC), and your mission is to stop the extinction of several species. As representatives of the IWC, you go to different parts of the world to research and protect endangered fauna.

In this cooperative trick card game you have to communicate well and work together as a team. Each round consists of a series of 8 turns (or strokes) for each player. The first animal card played in a trick determines the color of that trick.

The other players must, if possible, play an animal card of the same color. The player who plays the card with the highest value in the suit of a trick wins that trick. When all tricks have been played, each player with one or more mission cards must complete their mission(s) by collecting (from their battle pile) all of the animal cards shown on their mission card(s).

If even one of the missions is not completed successfully, players will immediately lose the game. However, if all players' mission cards are successfully completed, players advance to the next round