Detective Diary

At 7 a.m. the same murder case opens for players around the world. It is a murder mystery you solve on your own, with no group to gather. Narrowing it to one case a day gives the game its rhythm — solve today's, and a new one takes its place tomorrow.

An investigation runs on interrogating suspects, searching locations, and analyzing evidence. Questions are limited, so choosing what to ask is itself the game, and answers stream in one character at a time to hold the tension of an interrogation.

At the end you write out the culprit, the motive, and the method in your own words instead of picking from a list. AI scoring and rule-based points combine into a grade and a star rating, and everyone who solved the same case meets on the daily leaderboard.

You can start without an account and claim the session later, and Korean, English, and Japanese ship in the same build. iOS, Android, and web all come from one codebase.