Amnesia: The Dark Descent

Amnesia: The Dark Descent is the game that popularized the modern 'run and hide' horror genre. Set in a dark, oppressive castle, players must navigate the environment while avoiding terrifying creatures they cannot fight. The game's sanity mechanic, which forces players to manage their mental state, adds a unique layer of tension. While its graphics are dated, its atmosphere and sound design remain incredibly effective.

It is a foundational title that every horror fan should experience at least once. It is a masterclass in tension building and environmental storytelling that still holds up today.