Porcupine's Fate is an atmospheric first-person sci-fi horror shooter with puzzles, mysteries, and melancholic undertones. This is Chapter 1 in a six-chapter game.

One day, every employee of Marsh Industries seemingly vanished. Unable to penetrate the state-of-the-art security system, police have asked The Agency for help. You're called in on a one-man mission to rescue any survivors, neutralize any threats, and retrieve the experimental AI brain Marsh has developed. What happened to the employees? Who is responsible? And what madness has this company created?

https://store.steampowered.com/app/1954300/Porcupines_Fate/