Case Closed is a single-player and multiplayer mystery game in which players investigate a murder on a secluded island by exploring a mansion, collecting clues, and deducing the culprit. In this game, players arrive at a large mansion on an island where their host has been murdered, and they must identify the murderer among the guests before they can leave. It stands out with its detailed 3D-rendered mansion, character-driven storytelling, and multiple cases that offer high replayability, including various outcomes and endings, with additional downloadable content for extended gameplay.