In 'Whose Haunt Is This?', players take on the role of a rookie paranormal investigator equipped with only a smartphone and a quirky ghost-hunting app named 'Phantom Finder.' After receiving a mysterious invitation to a notorious haunted mansion that belongs to an eccentric family, players must explore rooms filled with quirky ghosts, unlock backstories through dialogue choices, and solve puzzles to piece together the history of the mansion. As players interact with a variety of spectral characters—each with their own unresolved issues and hilarious personalities—they must decide who to help, potentially affecting the fate of the mansion and its inhabitants. The game oscillates between spooky and laugh-out-loud moments, delivering suspense, plot twists, and charm.