Earth in prehistoric times. The continents are shifting, the last ice age is coming. Fierce predators roam the land. From being starving hunter-gatherers, you will develop a great tribe with many options on prehistoric technology to great cultural breakthroughs. Your goal is to survive and thrive in real-world-inspired locations and migrate to new lands. The culture tree is where you discover religion, policies, and human interactions inside and outside of your tribe, the main purpose of the culture segment is to allow the player to shape the cultural development of the people.