Paleomythic x alien empire

in the land of Ancient Mu, a harsh prehistoric world full of mysterious ruins and temples to explore, huge and terrible creatures that roam and spread fear across the land, and nefarious mystics and sorcerers who plot dark schemes from the shadows. It is a world of biting cold winters, of people hunting and foraging to survive, and tribes that wage relentless war.Taking on the roles of hunters, healers, warriors, soothsayers, and more, navigate a world of hostile tribes, meanwhile a dreadful alien empire has invaded the galaxy. Can you defend your world?