Kumitantei™: Old-School Slaughter is a tribute to retro anime and pop culture of 1980's Japan, underlined with a dark twist of horror and conspiracy!Primarily inspired by Rumiko Takahashi and the classic Japanese adventure game genre, blended seamlessly with intricate deck-building and tense mystery solving akin to modern classics!Enter into an engaging world of murder, mystery, and anemoic alternate history where solving complex cases is the key to unravelling the winding narrative!Meet a colourful ensemble cast of sixteen uniquely gifted Absolute students as they find themselves caught in a deadly Apathy Experiment, where their very humanity is put to the test! Trapped in Janus Institute's decrepit Bunker, will exploring and solving the mysteries of its past and present lead to means of escaping alive?Bond with fellow participants to earn their trust, investigate grisly crime scenes to find your evidence, and then leverage both to uncover the truth!Battle your way through fast-paced Card Debates, Retro Minigames, and more to ensure the facts prevail and the true killer is discovered! These high stakes, high energy Clinical Trials can only end in bloodshed, whether it's the culprit's or everyone else's!