Dinosauriernas hemliga dal means " The secret valley of the dinosaurs. " Two dinosaur families are competing for the power in the secret valley. This tactical game is recommended from 6 years and up, and works for adults. In the game, the purpose is to try and catch the opponents dinosaurs while avoiding the other player´s dinosaurs and the bloodthirsty T-Rex who belongs to no one. The dinosaurs all have different amounts of strength and can´t catch other dinosaurs who are stronger than them selves.