The Detective Reaper Invites PC Steam CD Key

Would you like to play a game of deduction? Before you are the testimonies from the 3 suspects of a murder case. Among them is a lying murderer... X: Obviously, the culprit is Y. Y: I'm not the culprit. Z: X and I are not the culprit. Could you quickly tell who the murderer was? The job of a detective reaper is simple: get testimonies from the suspects, deduce the culprit, and execute them with your own two hands. Culprits always tell lies, and the innocent always tell the truth. If you choos...