Monday Begins on Saturday by Arkady and Boris Strugatsky, he is one of the creatures held in the NIIChaVo institute. Koschei appears as a character in John C. Wright's "War of the Dreaming" novels. He offers to save the hero's wife, if the hero will agree to take the life of a stranger. Koschei appears as a slave to Baba Yaga in the Hellboy comic book series, first appearing in Hellboy: Darkness Calls. Koschei's origin story is later revealed in backup stories to single issues of Hellboy: The Wild Hunt. The story is also collected in Hellboy: Weird Tales and expanded upon in Koshchei the Deathless. Koschei also appears in DC Comics The Sandman: Fables and Reflections. In the webcomic PS238 by Aaron Williams, the child hero 84 is currently trapped in Koschei's egg, trying to find the "eye", and in doing so, will become his new Champion of Earth to battle from now on. Koschei is the primary antagonist in Marina Frants' short fiction piece "Death Becomes Him", the sequel to "A Bone to Pick". Katherine Arden's novel, The Girl in the Tower, features Kaschei as the main antagonist. It is the second book in the Winternight trilogy, which is inspired by various Russian folktales. In Alix E. Harrow‘s novel, The Once and Future Witches, Koschei the Deathless appears as a wicked witch in an old Russian witch tale. Games In the fantasy tabletop role-playing game Dungeons & Dragons, he is the inspiration for the demon lord Kostchtchie, published 1983 in Monster Manual II. Koschei appears as a character in the MMORPG RuneScape, under the name "Koschei the Deathless". In the video game series The Incredible Adventures of Van Helsing, the Death of Koschei is a key plot item in the second game. In the third game, recurring supporting character Prisoner Seven is revealed to be Koschei the Deathless, and becomes the main antagonist. In the videogame Shadowrun: Hong Kong, the supporting character Racter has a drone named 'Koschei', which later in the game can gain an upgrade named "Deathless" that makes the drone unkillable. In the computer game Dominions 4: Thrones of Ascension, Koschei appears as a hero character for Bogarus, a faction inspired by medieval Russia and Slavic mythology. The legend of Koschei the Deathless serves as an inspiration for the narrative of Rise of the Tomb Raider. In the digital card game Mythgard, "Koschei, the Deathless"