In the classic adventure game Secret Files: Tunguska, players unravel one of the greatest mysteries of our time. In 1908 in the Tunguska region of Siberia, a massive explosion of unknown origin triggered a flaming inferno, leaving death and destruction in its wake, but almost 100 years later this mysterious catastrophe is barely remembered. Even Nina Kalenkow knows nothing of it-until her scientist father suddenly vanishes without a trace. Accompany Nina and her boyfriend Max on a fascinating voyage of adventure around the world. Follow the kidnappers’ trail through ancient secret passageways in Irish castle ruins, through the flickering heat of Cuba, and aboard the legendary Trans-Siberian Railroad.