Free Parallel Experiment on Steam

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.

Categories: Multi-player ,Co-op ,Online Co-op ,Cross-Platform Multiplayer ,Family Sharing

Frequently Asked Questions:

How to get it free?

Step 1: Click "Get It Free" button.

Step 2: After clicking the "Get It Free" button, you will be redirected to the game's page on the Steam store. You should see a green "Play Game" or "Add to Library" button on the page. Click it.

Step 3: A new window will open confirming that you want to add the game to your Steam library. Go through the installation prompts by clicking "Next" until you reach the end. Then, click "Finish" to add the game to your library.

Step 4: The game should now be in your Steam library. To play it, you'll need to install it first. Do this by navigating to your library, clicking on the game, and then clicking the "Install" button. Once the game is installed, you can launch it directly from your Steam library.

How can I download Parallel Experiment?

You should log in to Steam to download and play it for free.

How can I get notified about the free games in the Steam category with the Free Games Discord Bot?

Use the `/cat` command to activate the Steam category. Once activated, when games like Parallel Experiment become free, the Free Games Discord bot will share them in your Discord server. For more information about the Discord bot, click here.

Which platforms is the game playable?

Parallel Experiment can playable the following platforms: Windows Mac

What is the genre of the game?

The genres of the game are Multi-player ,Co-op ,Online Co-op ,Cross-Platform Multiplayer ,Family Sharing .

What languages are available for Parallel Experiment?

Parallel Experiment supports the following languages: English**languages with full audio support

When was Parallel Experiment released?

The game relased on Jun 5, 2025

Who is the publisher of the game?

Eleven Puzzles

Who is the developer of the game?

Eleven Puzzles

Is "Parallel Experiment" still free?

The game is currently free. If you add the game to your library within the time specified in the free game offer, the game will be permanently yours.

IMPORTANT: "Parallel Experiment" is a 2-player cooperative puzzle game that requires each player to have their own copy on either mobile, tablet, PC or Mac . Internet connection and voice communication are essential. Need a Player Two? Join our Discord community!

ENGAGE IN THE PARALLEL EXPERIMENT

Parallel Experiment is the second standalone chapter to the cooperative point-and-click puzzle game series 'Cryptic Killer'.

After getting tricked by the Cryptic Killer in Unboxing the Cryptic Killer, detectives Old Dog and Ally are back on the quest to capture the infamous criminal. A series of cryptic clues leads them across the city taking them closer to uncovering his latest ominous scheme: the Parallel Experiment. While the detectives are uncertain about Cryptic Killer's exact plans, they know they must act fast to stop him.

As they navigate this maze of clues, one question remains: Are they closing in on the Cryptic Killer, or walking into yet another one of his traps? Determination is high—this time, they're not letting him get away.

THE ONLY WAY TO ESCAPE IS TO WORK TOGETHER

Two minds are better than one, and the only way you'll be able to catch the Cryptic Killer codes is by working together. Through separate screens, you and your friend will each be given half of a puzzle at each location. Communicate, collaborate, and work together to push your puzzle-solving skills to the limit.