Description: 1.8 million years ago, in the cradle of humanity, Ergaster was thriving amid the Habilis. Then one day he decides to explore the world outside the cave. The Habilis want to follow him but they just walk. You have to help them by modifying the environment and collect silex to reach the last levels. You have three different silex: the standard one, the blue one must be collected before the habilis and a golden one (bonus).