Parallel Experiment is a two-player cooperative puzzle adventure starring detectives Ally and Old Dog, who become targets of the Cryptic Killer’s twisted experiment. Often separated, players compare their distinct clues and communicate to solve puzzles together; an internet connection and voice communication are essential.
Its noir-inspired story unfolds in comic-book panels, while collaborative challenges range from deciphering ciphers and finding passwords to unlocking intricate locks. This is the second standalone chapter in the Cryptic Killer series, and can be enjoyed without playing the first chapter.
