No Case Should Remain Unsolved is a single-player detective adventure built around a cold case rather than a stream of unrelated investigations. In February 2012, young Seowon disappears from a playground, and the police fail to solve what happened. Twelve years after former Senior Inspector Jeon Gyeong retires, a young officer asks her to revisit the case. The trail leads through testimony and memories, with the unsettling premise that people around Seowon were lying.
Its defining mechanic turns deduction into arrangement: players connect fragments of memory like pieces of a jigsaw puzzle, using clues and conversations to reconstruct what may have happened. The game also includes passcodes, keys and hidden truths, so investigation involves more than simply reading witness accounts. Its design ties those discoveries to Jeon Gyeong’s unresolved personal case, making the mystery and the reasoning system part of the same focused adventure.
Its advertised playthrough is two to three hours, giving the investigation a compact, self-contained shape. An original soundtrack by Seongyi Yi accompanies the case, while the central draw remains the work of sorting conflicting accounts and deciding how the memories fit together.
