Rosemary Reed visits Richard Felton's estate under pretense in order to find out more about the disappearance of a girl called Celeste. The argument between Rosemary and Richard soon escalates and she is kicked out. Waiting for an opportunity to sneak back inside, she is determined to snoop around and get some answers. But what she gets is far more than she bargained for as she enters the world of nightmares and unfathomable horror. The story starts and ends with older Rosemary talking about the events that have transpired at the time of her visit to Felton's estate.
Remothered: Tormented Fathers is the first chapter of the Remothered story and is a horror survival game. The player must face enemies without being well-equipped to handle them, similar to games like Clock Tower 3 or Demento. There are no boss battles, and while enemies change over time, the way of dealing with them remains the same throughout the game. Rosemary can carry up to three throwable objects or ropes and one defensive weapon at the same time.
The core story is covered via cut-scenes, but finding various collectibles provides more depth to the background. The game includes quick-time events when fighting enemies, and failing at any of them means certain death. The estate is very dark, making it difficult to explore without a pocket flashlight, which also makes Rosemary more visible to her enemies. Hiding places can be used to avoid confronting someone, but while in hiding, the pointer appears, requiring the player to keep it inside the designated circle.
The game uses shoulder camera by default, allowing the player to walk in any direction and control the camera separately. The shoulder camera can be switched between left and right sides for better angles and views. Auto-save is only used at specific points in the story, with the rest requiring the player to stand in front of a mirror with the pendulum clock. Clearing the game unlocks extras accessible via the main menu.