The game begins with the discovery of a dusty attic, where an old diary is uncovered. Written by an anonymous author, the diary becomes a gateway into a world of intrigue and enigma as players are transported back in time to uncover the truth behind the disappearance of a prominent figure in Delphinium.
The gameplay mechanics in The Diary are a mix of exploration, puzzle-solving, and detective work. Players must carefully examine and interact with their surroundings, searching for hidden clues and objects that will aid them in their investigation. As they piece together the puzzle, players will have to use their deduction skills to connect the dots and make sense of the disparate pieces of information.