Parallel Experiment

Parallel Experiment is a co-op puzzle adventure where two detectives, Ellie and Old Dog, find themselves caught in the twisted plans of a dangerous Cryptic Killer. This noir-themed game requires each player to have a separate copy on PC, Mac, or mobile platforms as you work together across multiple screens. The game features over 80 challenging puzzles that require constant communication and teamwork: one player must reroute a water flow while the other deciphers codes, or solve computer passwords to unlock the next step for their partner.

NOTE. Uploaded version: 03 October 2025 [v1.0.8 (Build 20272586)]. This is Full Release and latest version of game. The game is already Pre-Installed and ready to run the game, read the instruction below.

About This Game

The comic book art style brings the story to life with nearly 100 hand-drawn panels that unfold like a graphic novel. Beyond the main investigation, players can enjoy co-op mini-games that put new spins on classic games like darts, match three, and scratching post. The game features unique features such as co-op dialogue where NPCs react differently to each player, a drawing system that allows you to take notes and sketch out solutions, and playful ways to annoy your partner by shaking their screen or knocking on windows.