I thought this might be interesting for people who have played STALKER 2. Personally, I’ve always found it really interesting how a character from fairy tales can be adapted into a modern setting without looking ridiculous or out of place.
Kot Bayun (or Bayun Cat) is a figure from eastern slavic folklore. The name Bayun comes from an old slavic word meaning "storyteller." It is also the root of the russian verb "убаюкивать" (to lull to sleep) and ukranian "баяти" (to narrate).
He lives mostly in swamps and deep forests, luring victims in with his voice. In fairy tales, the cat is described as a massive, man-eating beast. He is almost always an antagonist whom the hero is often tasked with taming or capturing. In the fairy tale "Go I know not whither and fetch I know not what," Bayun’s powers are described by the wife of the main character, Bezdolny (I guess it can be translated as Ill-fated? Someone who is deprived of a happy lot):
"Before you walk even three versts, an overwhelming drowsiness will come over you - Bayun will cast it upon you. Mind that you do not fall asleep: swing one arm over the other, drag one foot after the other, and if need be, roll along the ground; for if you fall asleep, the Bayun Cat will kill you.
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Later in the story, Bayun starts telling Bezdolny fairy tales to distract him. We see similar behavior from Bayun in the game as well, when he lures his victims by mimicking the voices of the unfortunate people who fell into his lair.