Detective Gameplay: Traversal relies heavily on real-world exploration. Players take control of 1-4 Invesigators to gather physical "Clues" that require timed decryption to unlock new narrative leads.

The Madness: Trade traditional health pools for a complex, four-tiered Sanity System.

Lethal Combat: Encounters are treated with a strict, tabletop-inspired "kill or be killed" philosophy.

Modular Cast: There are no arbitrary "Game Over" screens when a companion dies. If an investigator falls in battle or completely succumbs to insanity, the narrative dynamically warps. The remaining cast inherits the deficit of their lost skills, altering dialogue tracks, changing group approval levels, and shifting the Lead Investigator title as they push toward the resolve of the main mystery.