Harry Potter Horror Game Concept:
The history of Azkaban is a dark and bloody one. It was first discovered in the 1400s by the dark wizard Ekrizdis. There he constructed a vast fortress, where he lured lost ships to island.
Over the years he captured and tortured hundreds of people, performing dark experiments on them, creating all new dark creatures.
Eventually he died, and the Island became overrun with his dark experiments, until it was finally discovered in the 1700s. Several wizards entered the island, and when they returned to the mainland, they were so horrified by what they saw, that they couldn’t even speak on it. The island was swarming with so many horrific experiments that the men were completely traumatized, the least of which were dementors. Think about that, the LEAST of which were dementors!
Here’s my proposal, a horror game in the vain of Dead Space or Resident Evil, where you act as one of these initial wizards to explore the island. Becoming trapped in its depths and having to claw your way out, fighting all manner of horrifying creatures and eldritch bosses, solving puzzles, and using any kind of magic you can to escape this nightmare.