Check out these deep discounts.
The "Outlast" franchise is on sale for up to 85 percent off on Green Man Gaming as past of their "Werid & Wonderful" sale until April 8, 2019. Here's a list of those deals:
Outlast - $3 (85 percent off).
Outlast: Whistleblower - $1.35 (85 percent off).
Outlast 2 - $7.50 (75 percent off).
All of those titles requires a free Steam account to activate and play. Outlast: Whistleblower requires the base Outlast game to play.
Outlast features an outstanding creepy atmosphere. I spent a lot of time taking in the unique dreadful sights.
It was refreshing to face frightening monsters that can't be killed. The only thing that I didn't like about the game is its terrible final chapter.
Whistleblower is the perfect DLC for Outlast that features an interesting narrative. Just don't expect original environments to explore.
I haven't played Outlast 2, but I've heard that it's a lot more open and longer than the original, with an ending that will give you nightmares.