Childhood Horror Universe

The Childhood Horror Universe (also known as the Dark Domain Universe) is a shared universe of slasher terror horror films based on children's properties, mainly ones from the public domain stories.

Phase One

 * Winnie-the-Pooh: Blood and Honey (2023)
 * Scooby Dooby Die (2023)
 * Winnie-the-Pooh: Blood and Honey 2 (2024)
 * Mickey's Mouse Trap (2024)
 * Pinocchio: Unstrung (2024)
 * Do Not Enter Sesame Street (2024)
 * The Little Engine That Could Devour (2024)
 * The Cookie Carnival Nightmare (2024)
 * A Nightmare On Music Land (2024)
 * Bambi: The Reckoning (2025)
 * Peter Pan: Neverland Nightmare (2025)
 * Teletubbies: Terror in Tubby Land (2025)
 * Tom and Jerry's Nightmare Terror! (2025)
 * Scooby Dooby Die 2 (2025)
 * Theodore the Terror Tugboat (2025)

Phase Two

 * Looney Tunes of Terror! (2026)
 * Thomas' Nightmare Sodor (2026)
 * Winnie-the-Pooh: Blood and Honey 3 (2026)
 * Yogi the Killer Bear (2026)
 * Snow White and the Seven Maniacs (2027)
 * Frosty the Killer Snowman (2027)
 * Barney the Killer Dinosaur (2027)
 * Ninja Turtles: The Feared Four Pure Evils (2028)
 * Courage the Nightmare Dog (2028)
 * Thor: God of Death (2029)

Overview
Winnie-the-Pooh: Blood and Honey follows Winnie the Pooh and Piglet as homicidal maniacs after Christopher Robin abandoned them for college. They commit murder sprees in the hundred acre wood.

Scooby Dooby Die (or simply Scoob) follows a similar premise. After killing the Mystery Inc gang following a coke binge, a mentally broken Scooby Doo and Shaggy go on a road trip slaughtering citizens who they hallucinate as the monsters of their past. Following Shaggy's demise at the hands of a Detective Welker, Scooby joins up with Winnie the Pooh after fleeing to the Hundred Acre Wood.

Bambi the Reckoning follows Bambi wanting revenge on the hunter who killed his mother. After the hunter's death, Bambi is revealed to be part of the same species of human-animal crossbreeds that Winnie the Pooh and Scooby Doo are, and his mother's hunter only killed her to kill the abominations. Bambi vows to find who the original creators are.

Peter Pan: Neverland Nightmare is a horror take on Peter Pan in which kidnapped lost boys tried to escape an insane Peter Pan. While the original Peter Pan is a fairy-tale with a magical character, the Peter Pan in this film is a psychologically and mentally unstable human boy who is fixated with the Peter Pan stories and plans to full fill his fantasy by abducting children to fit with his story. Captain Hook is not a villainous pirate that runs a gang of pirates, but in fact an elderly retired lighthouse keeper who Peter forces the boys to target and try to murder. The only fantastical element is that Crocodile is a human and animal crossbreed, the same species that were seen in Winnie the Pooh: Blood and Honey, although unlike Pooh and friends Crocodile is friendly and tries to escape the deranged Peter. The film is revealed to be a set chronologically prior to Winnie the Pooh: Blood and Honey, and that Peter grows up to be Maria's stalker as mentioned and seen in a flashback in Blood and Honey.

In Snow White and the Seven Maniacs, Snow White flees the Evil Queen and stumbles upon the Seven Dwarfs who offer her refuge. But they are revealed to be serial killers who have previously groomed and murdered other Princesses and buried them in glass coffins in the garden. Snow White teams up with the Huntsman to deal with the maniacs.

In The Terrible-Tubbies, a space crew crash on a mysterious planet which is covered in green fields and has a sun with a child's face on it. Despite the beautiful look, it is populated by four creepy looking creatures known as Teletubbies who proceed to hunt down the crew. The concept takes inspiration from the first Winnie the Pooh Blood and Honey film in which the telletubbies consumed Po. This film takes a more science fiction route.

Phase Two begins with Winnie the Pooh: Blood and Honey 3, which acts as the conclusion to the Winnie the Pooh horror trilogy.

Ninja Turtles: The Feared Four Pure Evils centres around a team of mutated human and turtle hybrids that live in the sewers of New York City, and come out at night to target the population and feeding the remains to their mutated rat leader. This installment is the first to take place in the United States rather than the United Kingdom or Europe, although parts of Glasgow are used for filming locations due to budget.

Thor: God of Death takes a slightly more supernatural route in the series, that sees a powerful God named Thor as he plans to purge humanity and it is up to his brother Loki to stop him. Thor targets the "unworthy" but smashing their heads to pieces with his hammer.

Mythology
The most recurring mythology in the franchise deals with the "crossbreeds", a race of humanoid-animal hybrids created by the Adulescentia Institute. They are first introduced in Winnie the Pooh: Blood and Honey in the form of Winnie the Pooh, Piglet, Owl, Eeyore and Rabbit, although their origin is not elaborated on. The next crossbreed is Scooby Doo, and then Bambi in Bambi: The Reckoning, with the revelation in the latter that they are connected to Pooh and his friends. Crocodile in Neverland Nightmare is also revealed to be a crossbreed, also more benevolent than the other characters as he tried to flee to Neverland to escape the horrors of his place of origin.