Your childhood with your cousins at Grafton Manor was carefree. But one fateful night changed everything: your parents were locked in the garden shed and burned alive. However, you remember nothing from that night. Fifteen years later, you all reunite at Grafton Manor. In a letter, the oldest cousin Johnny wrote that he needs your help to solve the murders. But when you arrive, he is nowhere to be found. You only discover a message written in blood on the wall: Welcome back. In the thriller adventure Nightmare, terror will run through your bones. Together, you are on the trail of your parents' killer. Try to unmask the perpetrator, or you may be next. Nightmare - The Thriller Game is played with an app that guides you through the terrifying gameplay. Additionally, there are character and story cards that provide you with information and clues. Once the power goes out, you must put on a blindfold and wait for instructions. Meanwhile, nerve-wracking events unfold that change everything.