The majority of the game takes place in abandoned areas (house, defunct mine, etc.), each with different objectives. Slender: The Arrival uses similar mechanics to its predecessor, The Eight Pages. The character is armed only with a flashlight. This limited defense forces a sense of helplessness, as the best way to survive in the game is to run whenever in danger.
Source: Wikipedia, "Slender: The Arrival," available under the CC-BY-SA License.