63		Last Half of Darkness (Windows, 2000)
60		Inner Demons (DOS, 1996)
60		Don't Knock Twice (Windows, 2017)
60		Asylum II (DOS, 1985)
50		Choice of Zombies (Windows, 2017)
50		Sex Vixens From Space (DOS, 1989)
50		Vampire's Castle Adventure (DOS, 1984)
50		Transylvania (DOS, 1986)
50		Planet of Lust (DOS, 1989)

Notes: Games similar to Buffy the Vampire Slayer: Call of the Siren, Games like Buffy the Vampire Slayer: Call of the Siren, Blade Games, Windows, Adventure, Interactive Fiction, Text Adventure, Adult, Horror, 1st-person, Buffy the Vampire Slayer, Vampires, PC, Game Similarities.