Parallel Experiment Unlocks in March – Two Can Play That Game, but Only Together!

Crack the Cryptic Killer’s twisted puzzles in this thrilling co-op mystery coming to Steam on March 6th.

28 JANUARY 2025 – Eleven Puzzles has solved the puzzle on locking in a release date for Parallel Experiment and is thrilled to confirm the co-op puzzle game will arrive on Steam on March 6th! The demo is available today and awaits players eager to work together and escape the Cryptic Killer’s deadly experiment.

Mobile versions (iOS & Android) and a Nintendo Switch version are coming later this year and will offer players even more options to play co-operatively, with crossplay possible across all platforms!

Two detectives, one deadly experiment, a race against time.
Each player only has one half of the puzzle.

Eleven Puzzles is no stranger to creating acclaimed cooperative games and they are living proof that co-operative puzzlers are a much more popular genre than most would expect, with over 8 million downloads of their free title Unsolved Case.

Puzzle fans who can’t wait for March 6th to get here can already take a stab at the previous entry in the series: Unboxing the Cryptic Killer, giving them more information on our detectives and their nemesis.

But no fear: Parallel Experiment is a stand-alone title you can enjoy without any prior knowledge and is the studio’s most ambitious project yet. It has already amassed well over 60K wishlists!

Parallel Experiment – Official Release Date Trailer: