This unique two-player card game teaches kids about endangered species and environments. Game play is set up as though all events take place in a mystical world, yet the world described is that of Earth. Players compete to collect cards with different skills and helpful animals and tools on them. Turf Wars occur wherein they must defend the Xeko-system they've created with the cards they've collected. The set includes 50 cards. “Xeko is more fun than other card games because the heroes of the game are the real animals of earth’s wildest habitats,” Mark Gross of Matter Group told TDmonthly. “Xeko fans know all kinds of cool facts, like which African frogs ooze poison and the name of the world’s smallest primate.”