Underground City

Guardian of Underground City

A breathtaking underground city carved into an enormous cavern. Bioluminescent crystal formations provide light. Elegant stone buildings, bridges over underground rivers, and a central plaza with a giant clockwork sun. A surface explorer stands amazed at the cavern entrance. Awe-inspiring subterranean civilization.

You discover a vast city hidden beneath your own, built by a civilization that moved underground centuries ago. Their technology surpasses ours, but they've lost something — sunlight, and the will to return. You're the first surface dweller they've seen in 500 years.