Ah, I immediately recognized Unreal Engine and its little special features, like the fact that Avast crashes the game at launch because the icon has been changed! :D
Now about the game, I congratulate you on the work you've done on the atmosphere and lighting! I found it hard to get the hang of, so I spent a long time on the tutorial to master the commands and game play, but once I'd done that it was a real pleasure to play!
Well done for a job well done!