Outlast

Award for scariest game of 2013

Outlast is played from a first-person perspective. The main character, Miles Upshur, is incapable of combat, except for certain scripted sequences in which he pushes enemies away. To navigate the environment, the character is able to climb to ledges, vault over low obstacles, crawl, and slide in narrow gaps.
Except for vaulting, enemies are incapable of any of these maneuvers, which gives the player a certain edge. In addition, the player can survive encounters with the inmates by hiding inside of lockers or under beds, although certain enemies may search the room and attempt to locate the player for a short time before moving on.

Since much of the asylum is dark, the player must use Miles' video camera to see, thanks to its night vision function. Using night vision consumes batteries, for which replacements are scattered across the environment.

When injured, Upshur must avoid taking any further damage for a while, which will allow him to recover.

SYSTEM REQUIREMENTS

Minimum:

OS: Windows XP / Vista / 7 / 8 - 64 bits
Processor: 2.2 GHz Dual Core CPU
Memory: 2 GB RAM
Graphics: 512 MB NVIDIA GeForce 9800GTX / ATI Radeon HD 3xxx series
DirectX: Version 9.0c
Network: Broadband Internet connection
Hard Drive: 5 GB available space
Sound Card: DirectX Compatible
Additional Notes: 32 bits systems are not officially supported, but should work if configured to provide 3Gb of user-mode address space.