Amnesia is an adventure game played from a first-person perspective.
The game retains the physical object interaction used in the Penumbra series, allowing for physics-based puzzles and interactions such as opening doors and fixing machinery.
Few in-game objects are operated by toggle; to open a door, for instance, the player must hold down a mouse button and then push (or pull) the mouse.
This gives the player stealth, allowing them to peek out a barely-opened door or open it slowly to sneak away,
but also adds to the player's sense of helplessness, as it is now entirely possible to attempt to push open a "pull" door whilst danger approaches from behind.