Amnesia: The Dark Descent 1.0.1
Amnesia is an first person shooter adventure game. The game allows for physics-based puzzles and interactions such as opening doors and fixing machinery. In-game objects are operated by toggle. To open a door, for instance, you hold down a mouse button and then push (or pull) the mouse. This gives you stealth, allowing you to peek out a barely-opened door or to open it slowly and sneak away. This also adds a degree of difficulty to the game as it is now possible to push open a “pull” door while something tries to sneak up behind you.