Hello and thank you for taking time to check out Fattibab.
The games atmosphere and unease was heavily inspired by the exploration game Babbdi and the design of the games world was inspired by quarries as well as liminal open spaces in general. As for the Cleaners in a defeated state unfortunately the game engine I used to make the game is Easy FPS Editor and sadly even though it works very well making an FPS game anybody can make with a bit of practice it does miss out when it comes to more complicated features that can be done in other engines like Unity or Unreal Engine.
Either way thank you for the feedback and I hope you enjoyed Fattibab. :)