What Casebook is not
- Not a casebook in the legal sense — it is not a law-school textbook or a collection of court opinions.
- Not case-management or social-work software. An unrelated product shares the name; this is a mystery game.
- Not a multiplayer party game. There is no host, no group, and no scheduling — every case is built for exactly one player.
How a case works
- Read the opening: the setting, the victim, and the question the case asks.
- Search the scene. Clues are not highlighted for you — you have to look.
- Compare testimony across suspects and find the statement that cannot be true.
- Rule out possibilities in a notebook, then accuse exactly one person.
- After the verdict, read the full account and check what each clue actually pointed to.
Fairness is a build step, not a promise
Every case is run through a deduction engine before release. It has to prove that exactly one solution is reachable from the clues a player can actually find. A case that can be solved two ways, or that needs a clue the player can never reach, does not ship. Difficulty comes from hiding the contradiction well — never from withholding the evidence you need.
Catalogue and pricing
Season 1 has 29 cases; 4 are listed now, and the rest are added as each finishes review. The first case is free with no account. Every other case opens with one or two keys, depending on the case. Keys start at 2,900 KRW and get cheaper per key in larger packs; a launch-only pass at 29,900 KRW opens every case without keys for 365 days. These are one-time purchases — there is no subscription. Payments are not open yet.