Buy Parallel Experiment PC

Where can you buy the cheapest Parallel Experiment key for {6}? Check and compare prices from 1 stores among 1 offers on XD.deals. The lowest Parallel Experiment price on keyshops is at $9.99 (0% off).

Release: 05 Jun 2025
Steam:
Very Positive (156)
Keyshops
Unavailable
Buy in Official Store:
$9.99
Buy in Keyshops:
See price history

Official Stores (1)

DRM:
Steam
Steam
Steam
Parallel Experiment
Windows
+2
3d ago
DRM:
Steam
Steam
$9.99

About Parallel Experiment

Parallel Experiment - about the game
Two detectives chase the Cryptic Killer in this noir-inspired indie adventure, only to end up trapped in his twisted experiment. Players control Ally and Old Dog separately, gathering unique clues to solve over 80 collaborative puzzles like redirecting water flows, cracking ciphers, and soldering components. Comic book panels deliver the gripping story across nearly 100 pages, while features like shared dialogues with NPCs and a notebook for sketching deepen the teamwork. Cross-platform co-op demands voice chat and internet to communicate clues, unlock partner puzzles, and tackle retro mini-games such as darts or Match Three with fresh twists. Annoy each other by shaking screens or knocking windows for lighthearted chaos amid mind-twisting challenges. Escape room fans who thrive on verbal coordination and joint problem-solving will find their perfect match.

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.

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.

Interface:
GermanEnglishSpanish - Latin AmericaFrenchItalianPolishRussianTurkishSimplified Chinese
Audio:
English
Subtitles:
GermanEnglishSpanish - Latin AmericaFrenchItalianPolishPortuguese - BrazilRussianTurkishSimplified Chinese

Age rating

Unavailable
Steam:
Very Positive (156)

Minimum:

  • Processor: Intel core 2 DUO 2GHz+, AMD Athlon TMX2 2.2GHz+
  • Memory: 4 GB RAM
  • Graphics: Intel Hd graphics 520
  • Storage: 2 GB available space
  • Additional Notes: Broadband Internet connection; A working PC-compatible microphone

Recommended:

  • Processor: Intel core I5-4440, AMD FX 6300
  • Memory: 8 GB RAM
  • Graphics: Nvidia GeForce GT 740, AMD Radeon R7 250
  • Storage: 2 GB available space
  • Additional Notes: Broadband Internet connection; A working PC-compatible microphone

Minimum:

  • OS: macOS 10.13+
  • Processor: Apple M1 or Intel Core M
  • Memory: 4 GB RAM
  • Graphics: Intel Hd graphics 520
  • Additional Notes: Broadband Internet connection; A working PC-compatible microphone

Recommended:

  • OS: macOS 10.13+
  • Processor: Apple M1 or Intel Core M
  • Memory: 4 GB RAM
  • Graphics: Nvidia GeForce GT 740, AMD Radeon R7 250
  • Additional Notes: Broadband Internet connection; A working PC-compatible microphone
Historical low
Price history from official stores
-
-
-
Price history from keyshops
-
-
-

FAQ

8 questions

Before you start looking for a cheap Parallel Experiment key, check the essentials. Developed by Eleven Puzzles. Published by Eleven Puzzles. PC released date: 05 Jun 2025. Genres: Indie, Adventure. Categories: Multi-player, Family Sharing, Co-op, Cross-Platform Multiplayer, Steam Achievements, Online Co-op.

Q

Where to buy a cheap Parallel Experiment Steam key?

Using our price comparison and verified discount codes, you can buy a Parallel Experiment key for as low as $9.99. This deal is available at Steam and is among the cheapest offers on the market. All keys listed on XD.deals are delivered digitally and eligible for instant download after payment. Prices already include processing fees and applied promo codes, so you always see the lowest Parallel Experiment price on PC. Check the Parallel Experiment price history to buy at the best moment.

As of our last update (we refresh Steam pricing multiple times a day), the Parallel Experiment Steam price is $9.99. You can save an extra ~6% by paying with a discounted Steam gift card.

Our price tracker covers both official retailers and key marketplaces, so you can find Parallel Experiment on sale even outside seasonal promotions. We currently detect 1 active offer from official stores and keyshops. Check the table above, compare against the historical low, and set an alert so you never miss the next price drop.

Based on our data, Parallel Experiment is not currently available on GeForce NOW. You will need to run it locally on your PC. Browse games available on GeForce NOW.

Yes. Parallel Experiment has an official page on the Steam Store. You can also buy a Parallel Experiment Steam key from third-party sellers. Our price comparison currently includes 1 offer with Steam DRM. Pick one to ensure your Parallel Experiment download happens on Valve's platform.

Yes, with minor tweaks. Parallel Experiment is Steam Deck Playable - it works after small adjustments like selecting a Proton version or using the touchscreen for tiny launcher text. You can play Parallel Experiment on Steam Deck.

Parallel Experiment does not appear to be available on PC Game Pass, EA Play, Ubisoft+ or any other PC subscription service at this time. Your only option is purchasing the game - use XD.deals to find the best price.

No - XD.deals is not a store. We are a price-comparison service that tracks the best Parallel Experiment deals across official stores and verified keyshops. Click "Go to Store" next to any offer and you will be redirected to the retailer's website to complete your purchase.

Best prices for Parallel Experiment

1 Steam Steam Official
$9.99

Want to buy at the best moment? Set a price alert on XD.deals and get notified when Parallel Experiment hits its next historical low.

Create Alert
Join our Discord
Get instant help from our community and stay updated on the latest deals
Set Price Alerts
Get notified by email when game prices drop to your target
Create Free Account
Unlock wishlists, price alerts, and Steam sync