Play as Mark Eidos, a detective solving mysteries in Quatro City. Complete quests, investigate clues, and unravel a complex case. Explore the city, interact with characters, and make decisions that affect the story.
Solve supernatural mysteries in a first-person adventure. Explore San Francisco's streets, interact with environments, and uncover clues. Progress through cases with branching choices. Unlock story elements and solve puzzles to reveal the truth.
Between two similar images by tapping on discrepancies. Complete daily challenges to collect stars and unlock bonus levels. Track progress with a brain trainer feature to improve attention skills.