A case file set in 1990s Korea
Garisani Detective Agency is a story-driven deduction game built for two players working in real time. You take on the roles of a brother and his ghost sister, running an agency that accepts cases from both the living and the dead. The setting is an analog Korea of pagers and payphones, and the cases are handled through conversation, on-site investigation, and puzzles. Four stages are included, each one a case with its own structure. The stages are not simply harder versions of each other — every one brings new characters and new puzzles, so the experience shifts as you move through them.
Two roles, two sets of evidence
The core of the game is information asymmetry. One player is human: gathering clues by talking to people and investigating locations in person. The other player is the ghost: communicating through whispers instead of words and moving through hidden spaces the living cannot reach. Neither of you can see everything the other finds, so each player has to work their own role properly and then bring the pieces together.
That makes communication the defining part of the co-op mode. The game does not support voice chat, so you will need to coordinate with your partner through whatever outside channel you normally use while playing together. The evidence you each collect gets placed on a shared case board, which is where your separate findings become a single deduction. Comparing what the human found in conversation against what the ghost picked up in hidden areas is how the truth comes together.
Before you start
This is a two-player co-op deduction game, so you need a partner for it — it is not built for solo play or for larger groups. Expect to spend time talking things through rather than reacting quickly; the pace comes from working out what your evidence means, not from fast reflexes. The retro, cartoony 2.5D presentation carries a 1990s visual novel feel, with text-based investigation and logic puzzles at the center of each case. Since voice chat is not supported in co-op, agree on how you will talk to each other before you begin, and keep the case board in view so both of you can see what has been shared.