Nyacronomicon!

Shiro is an apprentice witch with cat ears who dreams of becoming a full-fledged master. One day, while cleaning the forbidden archives of her stern mentor Cronia, she discovers the Necronomicon—a mysterious, ancient grimoire that pulls her into its sealed world. This realm is a labyrinth of ever-shifting dungeon floors populated by monsters born from the memories of greedy souls. The game is a roguelike dungeon crawler with puzzle and strategy elements. Defeat means losing all memories and returning to the start, but permanent relics allow gradual growth across endless loops, enabling players to make progress over time. The core challenge is to master the dungeon's secrets, overcome desires, and find a way back home—or risk being trapped forever as another memory in the book's cursed pages.