Survival & Horror: Mortanis Prisoners Prologue is a first part of the full game:
https://store.steampowered.com/app/2354120/Survival__Horror_Mortanis_Prisoners/

    Mortanis Prisoners – a survival horror game set in a Third Reich concentration camp where the camp’s leadership, upon discovering a planned rebellion, orders the execution of all accomplices. Two main protagonists encounter an even more terrifying fate. Will they be able to escape the nightmare?

Free Survival & Horror: Mortanis Prisoners Prologue Steam Key: NX2P9-VWNRX-Y65BR

PC requirements
Minimum:
  • OS: Windows 7, 8, 10 (64-bit)
  • Processor: Intel® Coreâ„¢ i5-2520 or AMD FXâ„¢-6300 or better
  • Memory: 20 GB RAM
  • Graphics: NVIDIA® GeForce® GTX 760 or AMD Radeonâ„¢ R7 260x with 2GB Video RAM
  • Additional Notes: HIGHLY recommended to install this game on your system SSD. This game is expected to run at 1080p and 60 FPS on low settings.