The 50 Clues series offers an immersive puzzle thriller to play at home. Together, players must solve a case by combining objects, solving puzzles and deciphering codes. They can use a web app to check their solutions and get hints if needed. Each part can be played on its own, but No Sign of Life, Deeper Down and The Last Journey tell a connected thriller: Sigrid’s Search. The story is designed to be played only once, but the serial number can be activated in the app up to 30 times. In 50 Clues – Deeper Down, players experience the second part of the story: The situation is worse than you could ever have imagined! A deadly, highly contagious fungal hybrid has spread across the island of Bornholm—a biological weapon that has spiralled out of control. You are in an underground military facility, where your sister’s research data are hidden somewhere. You must find them in time, or a global catastrophe is inevitable. But the mysterious company GAIA has other plans. Step into Sigrid’s shoes for a second time and solve the puzzles that lead you ever deeper down.