
Two detectives, one deadly experiment, a race against time. Each player only has one half of the puzzle. In this 2-player co-op puzzle game you can survive the parallel experiment only by working together.
Modeled estimate, not a reported figure. How we estimate →
Prices
The United States storefront in every case, so this compares stores and not countries.
Discounts
Every price cut of more than 20% we have observed, in each market that quoted one, with this game's chart position on either side of it. These are episodes, not a model: a sale is one event, and one event cannot tell you what the next one will do.
Reviews, worldwide (the counter carries no country): 0.71/day in the week to Sep 7 → 0.71/day in the week after.
Reviews, worldwide (the counter carries no country): 0.86/day in the week to Jul 25 → 2/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 26 chart moves that followed a price cut of more than 20% went a median of 7 places towards #1, and the 2,400 moves with no price cut behind them went 2 away. One store, one chart, one country — it is the only place we have enough observations to say even that.
Prices outside the United States have been collected since 6 August 2026 and chart positions since 19 July 2026, so a cut older than that has no market to compare and a market that joined later has no history yet. Nothing here is converted between currencies.
About
IMPORTANT: "Parallel Experiment" is a 2-player cooperative puzzle game with escape room-like elements. Each player must have their own copy on either mobile, tablet, PC or Mac (cross-platform play is supported).
In the game players take on the roles of two detectives who are often separated, each with different clues, and must work together to solve puzzles. Internet connection and voice communication are essential. Need a Player Two? Join our community on Discord! Find the link on the side of our Steam page.
Parallel Experiment is a noir-inspired adventure with a comic book art style, featuring detectives Ally and Old Dog. While following the trail of the dangerous Cryptic Killer, they suddenly become his targets and are now unwilling participants in his twisted experiment.
This is the second standalone chapter in the “Cryptic Killer” cooperative point-and-click puzzle game series. You can play Unboxing the Cryptic Killer first, if you want to learn more about our detectives and their nemesis, but Parallel Experiment can be enjoyed without prior knowledge.
In Parallel Experiment, players must rely on their communication skills as they’re separated and must each discover unique clues that are vital for solving puzzles on the other end. Teamwork is essential to crack the Cryptic Killer’s codes.
There are over 80 puzzles striking the perfect balance between challenging yet fair. But you're not facing them on your own! Communicate with your partner on how to best proceed, solve a puzzle on your end that unlocks the next step for them and discover a wide variety of puzzles from redirecting water flows, finding computer passwords and unlocking intricate locks, to deciphering cryptic ciphers, soldering electronic components, and even waking up a drunk!
Looking for a break from the main investigation? Dive into a variety of retro-inspired mini-games designed with a fresh cooperative twist. Challenge each other to darts, Three in a Row, Match Three, Claw Machine, Push and Pull, and more. Think you know these classics? We’ve reinvented them for a whole new co-op experience
Uncover vital clues through collaborative conversations. NPCs respond dynamically to each player, offering new layers of interaction that only teamwork can unravel. Some conversations are puzzles in themselves that you need to solve together!
Our love for comic books shines in Parallel Experiment. Every cutscene is presented as a beautifully crafted comic book page, immersing you in a gripping, noir-inspired narrative.
How many pages did we create to tell the story? Almost 100 pages! Even we were surprised by how much it took, but every panel was worth it to deliver a story that keeps you on edge until the very last frame.
Every detective needs a notebook. In Parallel Experiment, players can jot down notes, sketch solutions, and interact with the environment in creative ways. But we all know what you're going to draw first…
This is a key feature? Yes. Yes, it is.
Each level will have some way for players to annoy their co-op partner: knock on a window to distract them, poke them, make their screens shake. You already know you'll be doing this just by reading it, right?
Parallel Experiment has a variety of mind-twisting challenges that push the boundaries of cooperative puzzle design, offering situations never seen before in other games.
Sums Steam + Google Play
| Store | Price | Audience | Score | Chart | Est. revenue |
|---|---|---|---|---|---|
SteamYou are here | $5.99−40% | 838reviews | 85% | — | $130.2K |
| $6.99 | 62ratings | 74% | — | $123K |
Matched by title — a reused name can pair the wrong games. * is a critic aggregate. Prices and positions are each store's United States storefront; Epic charts worldwide. Audience and Score too, except Steam's, which is worldwide.
Engagement
Reviews
Themes across 115 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
Was a bit confused why it was double the price of the previous game, but was absolutely worth it imo. Played it with the same friend i played the other games with and it took much longer than we expected. It's probably beatable in less than 9 hours, we're just not the smartest folk lol and we did bother to get all achievements. Was particularly stoked by Bober.
Very good Co-op game. Definitely a game where you truly need to work together to find the answer and move around the rooms and puzzles. This one is a bit longer than the previous game but still super fun.
Media

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Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
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Genres
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English*, French, Italian, German, Polish, Russian, Simplified Chinese, Spanish - Latin America, Turkish*languages with full audio support
Hours played at review time, across 115 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
bon jeux
I love a puzzle game that doesn't use moon logic, wife and I only needed one hint but in hindsight it was right there we just didn't see it. So yea it's fun, give it a crack if you like assymetric co-op puzzles.
oyun gayet iyi bide salak birini bulursanız sarıyo keşke az mal olsaydık da geç bitseydi ALIN; GÜZEL OYUN.
Gra posiada błędy ale fabuła naprawdę wciąga
Coop Rätsel Spiel - 2D Gute und abwechslungsreiche Rätsel. Faire Speicherpunkte. Man kann quasi jederzeit die Charaktere wechseln um ein wenig zu "beschummeln". Die Story ist vernachlässigbar, die Minispiele in der Bar haben wir übersprungen. Unterhaltsame 6h
Dude this game is seriously so worth it. I played this with my friend and we gen were glued to the screen for the whole 4 hours it takes the beat the game! the puzzles amp up so they start easy then get super hard 100 percent reccomend
this game is great and really tests your partner skills
这游戏的可玩性很强,而且打折很便宜,双人合作要求挺高,两个人智商都得在线,而且剧情也很值得挖掘,总之适合两个都喜欢密室推理解谜的人一起玩
Active players
Estimated daily and monthly active players (DAU/MAU) modeled from peak concurrency.
Players by region
Where this game's players are, estimated from review languages.
Players also reviewed
The games this title's players most often review too — audience affinity.
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