Beneath our feet, a world of unimaginable scale and ancient secrets sleeps. Legacy of the Hollow Earth plunges into a subterranean realm where light isn't a gift from the sun, but a pulse from the Earth's very core. For eons, a hidden civilization has flourished, a society untouched by the surface world's conflicts and advancements, preserving a history far older than our own. But now, their isolation is at an end. A catastrophic threat from the surface world, a threat born of our own ignorance and greed, has awakened a long-dormant power within Hollow Earth. The fate of both worlds hangs in the balance, and the key to survival lies not in technology, but in a long-forgotten legacy of the ancients. As the veils between worlds thin, a new breed of heroes must emerge to bridge the divide and confront the truth of our planet's past—and determine its future.