Objects in the game can be manipulated, or picked up to be used to overcome obstacles or combined with other inventory items to make a new item to use. At times, the player encounters people in the game who can be talked with for clues and trivia. The game's main interface features a simple system connected to the mouse, in which the player left-clicks an object/person to use it/talk to, and right-click it to examine it, while a hint system, indicating interactive elements, can be activated by holding down the mouse's middle button.