Parallel Experiment

    Two players work together as detectives to solve puzzles and catch the Cryptic Killer.

    Eleven Puzzles

    Playing together

    Online co-op
    1 source
    Players in online co-op
    1 source
    Players online
    1 source
    How co-op works
    1 source
    Not known yet
    Online versus, Online multiplayer, Best with, Crossplay, Local co-op, Multiplayer through mods, One copy is enough, Free to play, Plays in browser, Demo, Playtest, Early access

    Hover, focus or tap a fact to see where it came from.

    How you talk

    Not known yet
    Plays without voice or typing, Wordless tools, Public matchmaking, Friendly with strangers

    About the game

    Dive into the secrets of the Parallel Experiment in this 2-player co-op puzzle game. Join forces as two detectives to finally catch the infamous Cryptic Killer. And remember - communication is key!
    From IGDB

    Screenshots

    Why we rate it this way

    • 85% positive from 874 Steam reviews.
    Steam, checked 1 Nov 2026Num reviews: 1Review score: 8Review score desc: Very PositiveTotal positive: 746Total negative: 128Total reviews: 874{"num_reviews":1,"review_score":8,"review_score_desc":"Very Positive","total_positive":746,"total_negative":128,"total_reviews":874}

    Sources

    First listed 1 Nov 2026. Updated 1 Nov 2026.