ptyxis: The game runs briefly than the screen turns black, or white, and the computer becomes unresponsive. It must be rebooted. This computer meets the system requirements for Outlast. ASUS M32AD, Intel core i7 4790, 16G RAM, Windows 8.1 64bit, Nvidia GTX750 with 2G DDR5 RAM.
I am trying solutions. The first thing was to reduce graphics settings, then reduce resolution, then try windowed mode. For each try the game still crashes the same way. Then changed the refresh rate to various settings between 60Hz to 144Hz but it still crashes. We suspect it might be windows 8.1 operating system. Maybe something installed by the GOG installer. Maybe something else.
Anyone know about this problem?
On Red Barrels site there is advice to open the Properties from shortcut to the game and add -32 to the target, to run it in 32bit mode. I have tried. That does not work with the GOG game. It seems to be meant for the Steam version or a retail packaged version. Anyone know the way to run the GOG version in 32bit mode?

Black123: In no way the game can run on 32-bit. But...

It is possible to play from the folder where you installed the game:

C:\GOG Games\Outlast\Binaries\Win32\ and open OLGames.exe.

In my computer works without problem. Bye!

ptyxis: Hi, Black123,
Not a solution yet, I did try it--
To do this I log on and play as administrator, then go into the files location shown above and open OLGames.exe. The game does not run from this, it opens a pop up box asking if I want to allow this application to make changes to the system, such as install, then I select 'yes' and it disappears. When the game is run from its original shortcut, play may continue for a few minutes before the screen turns black and graphics turns off, as before, requires computer to be rebooted.

Interestingly, I installed the game on my older computer, one I built, AMD quad core processor, Windows XP 32 bit, and older graphics card Nvidia GeForce GTX 550 Ti with 1G RAM . It works on this computer. It runs on a 32 bit operating system and without applying the reccommended correction to increase virtual memory, found on Red Barrels support page.