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Android Apps > Puzzle > Parallel Experiment
Parallel Experiment icon

Parallel Experiment

Eleven Puzzles
4.18
65 reviews
10,000+
Downloads
$6.99

Two detectives, one deadly experiment. Only together you can survive.

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Screenshots by Eleven Puzzles, from the Google Play listing
View on Google Play Also on the App Store

AppBrain's verdict

Rating on Google Play
4.18
65 ratings
Installs
18 thousand
Last updated
June 7, 2025
Ads
No ads
Size
N/A

Parallel Experiment has 18 thousand installs. It doesn't have enough ratings yet to judge what users think. Its best ranking is #70 in Top Paid, Puzzle in Denmark.

Official page on Google Play

User feedback

Ratings and reviews on Google Play

Comments on Parallel Experiment for Android

★★★★★ Aurelio G · Jan 16, 2026
A cool and great game to play with a friend. Although some puzzle could be tedious, most if not all the game was really fun. Also, great art style and voice acting.
★★★★★ Jonathan Lam · May 14, 2026
Amazing escape room game. This game is much longer than the first and has a bit more world building in the way you can interact with npcs in between puzzles. Def recommend checking out their demo first, but this is probably the best escape room experience on mobile as long as you have a partner to play with.
★☆☆☆☆ Honest Reviews · Jul 13, 2026
Nothing tells you this game requires 2 people to play. Kind of an important piece of information people should know before they download a game over 1G
★☆☆☆☆ Abc Xyz · Jul 22, 2026
I really, REALLY wish this game also had a single player mode, or partnering with AI. It looks very intriguing, but I don't have anyone else to play it with.
★★☆☆☆ Cooper Docking · Apr 25, 2026
You are better off to get the game on steam. It is really buggy on the phone

Google Play Rating history and histogram

41
5
11
0
5

Store listing

By Eleven Puzzles, from Google Play
Description by Eleven Puzzles Written by the developer, not by AppBrain. Click to read.
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!

WHAT IS PARALLEL EXPERIMENT?

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.

KEY FEATURES

🔍 Two Player Co-Op

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.

🧩 Challenging Collaborative Puzzles

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!

🕹️ Two Can Play That Game

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

🗨️ Cooperative Dialogues

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!

🖼️ A story told in panels

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.

✍️ Draw on… Everything!

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…

🐒 Annoy Each Other

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.

Safety and technology

Found in the app by AppBrain
Ads
No ads
Price
$6.99
Libraries
?
App size
N/A
Content rating
Low

Technologies used by Parallel Experiment

Releases

Updates seen on Google Play
Launched
June 2025
  • Oct 5, 2026Price IncreaseNew price: $6.99 ($3.50)
  • Sep 21, 2026Price DropNew price: $3.50 ($6.99)
  • Aug 22, 2026Price IncreaseNew price: $6.99 ($3.50)
  • Aug 8, 2026Price DropNew price: $3.50 ($6.99)
  • Jul 31, 2026Installs10,000+ installs
Show all changes Show fewer

Alternatives

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More from Eleven Puzzles

Unsolved Case icon Unsolved Case
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Also available on the App Store

Parallel Experiment icon Parallel Experiment
Eleven Products Sp. z o.o.
3.2
$6.99
9 ratings

Installs

Tracked by AppBrain
Last 30 days
630
Per day
21
30-day average
Play install range
10+ thousand
Launched
June 2025

Installs over time

Parallel Experiment has been installed 18 thousand times. Over the past 30 days, it averaged 21 installs per day.

Rankings

Google Play top charts
Highest rank
#70
Chart
Top Paid
Puzzle
Country
Denmark

Google Play Rankings for Parallel Experiment

Top rankings

Rank Country Category List
70 Denmark Puzzle Top Paid
70 Poland Puzzle Top Paid
70 Saudi Arabia Puzzle Top Paid
70 Slovakia Puzzle Top Paid
70 Turkey Puzzle Top Paid
71 Austria Puzzle Top Paid
72 Norway Puzzle Top Paid
73 Belgium Puzzle Top Paid
73 Switzerland Puzzle Top Paid
73 Czech Republic Puzzle Top Paid
Show all market rankings

Ranking history in Denmark

About the app and developer

About Parallel Experiment

Parallel Experiment is a puzzle app developed by Eleven Puzzles.

Install Statistics

Parallel Experiment has been downloaded 18 thousand times. In the last 30 days, the app was downloaded 630 times. It is ranked in the top 100 puzzle apps.

User Ratings

Parallel Experiment is rated 4.18 out of 5 stars. The rating is based on 65 ratings.

App Information

Parallel Experiment costs $6.99. The last update was on June 7, 2025.

Technical Requirements

The app has a content rating of Low Maturity. The app has been available on Google Play since June 2025.

Parallel Experiment is made and published by Eleven Puzzles. AppBrain is an independent app data site and isn't affiliated with Eleven Puzzles. The app name, icon, screenshots and description belong to Eleven Puzzles and are shown as published on Google Play.

App Performance Report

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Developer information for Eleven Puzzles

Eleven Puzzles

contact@elevenpuzzles.com

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Frequently asked questions about Parallel Experiment

Is Parallel Experiment free?

No. Parallel Experiment costs $6.99 on Google Play.

Is Parallel Experiment still available?

Yes. Parallel Experiment is on Google Play, and the last update we saw was on June 7, 2025.

Does Parallel Experiment contain ads?

No. Google Play does not list Parallel Experiment as containing ads.

Is Parallel Experiment suitable for children?

Google Play gives Parallel Experiment a low maturity rating, so it is meant for older children and up.

How many times has Parallel Experiment been installed?

Google Play lists 10,000+ installs for Parallel Experiment.

How do people rate Parallel Experiment?

Parallel Experiment scores 4.18 out of 5 stars, from 65 ratings on Google Play.

Who made Parallel Experiment?

Parallel Experiment was developed by Eleven Puzzles. It is listed in the puzzle category on Google Play.

What are the best alternatives to Parallel Experiment?

People looking at Parallel Experiment also look at these puzzle apps: Who is the Killer? Episode II, Murder Mysteries: Serializer, Detective Stories: CrimeBot 2, Mystery Clue - Logic Puzzles, Tick Tock: A Tale for Two.

Share Parallel Experiment

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Overview Alternatives History Reviews Rankings Technology
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