This is the most twisted game I have ever played, you start the game with 5 tortured prisoners being held by a psychotic computer named AM (he is voiced by Harlan Ellison, the guy who made this game with Cyber Dreams & the book version that he wrote), it's a choice driven point and click adventure game so you can pick any character or decision you want.
As you progress through the past of these 5 characters you'll feel what they feel about themselves like for example Gorrister's Guilt, Ellen's pain, Benny's ignorance, Nimdok's desires for torture & Ted's lust. The main goal of the game is to either satisfy AM by making the wrong choices or you can fix the past by making good choices.
The whole point of the game is to lose, there is no hope for humanity & overall if you feel that games aren't dark enough then play this awesome classic. (Warning if your sensitive to ♥♥♥♥, torture, murder, satanism, sacrifices, lust and etc. then this game isn't for you)
UPDATE: I found this awesome interview from Night Dive's website about the game & some of Harlan's opinions http://www.nightdivestudios.com/harlanellison_interview.html
UPDATE 2: If you liked this game & you want to hear more from Harlan Ellison then I suggest taking a look at his youtube channel http://www.youtube.com/channel/UC1XrlRQsRxYfuc47CCJN05w
or his twitter http://www.twitter.com/HarlanEllison9
(I thought Harlan was anti-digital but he's slowly liking technology & the internet)