Co-Op Puzzle Game Parallel Experiment Set to Challenge Players This March

Mark your calendars, puzzle lovers—Parallel Experiment, the upcoming co-op title from the creators of Unsolved Case, is officially arriving on March 6th, 2025. Developer Eleven Puzzles is inviting players to team up and face a pressure-filled conundrum set by none other than the sinister Cryptic Killer. If that sounds like your kind of challenge, the demo is already live on Steam, giving you a chance to test your wits ahead of release.

For fans of collaborative problem-solving, Eleven Puzzles has carved out a niche with their inventive games, and Parallel Experiment aims to expand upon their reputation. Known for crafting cerebral, dialogue-driven escapades, the studio’s past works—and their engaged community—hint at what’s to come in this new offering. You’ll need careful communication with your gaming partner to crack the codes, decipher riddles, and unravel the killer’s plans before time runs out.

What’s the Deal with Parallel Experiment?

The premise takes two players, traps them in separate rooms, and forces them to rely entirely on communication to piece together solutions. The Cryptic Killer’s latest sadistic trap is not just a room full of puzzles—it’s a game of survival, with every decision possibly being your last. Whether you’re connecting through voice chat with a friend across the world or playing side-by-side in local co-op, Parallel Experiment is designed to create tense, stand-out moments that test not only your brainpower but also your teamwork.

Unlike more traditional escape-room-style games, this one emphasizes the split-screen (or split-perspective) design that’s become a signature of Eleven Puzzles. Each player sees their own unique version of the surroundings, and only by sharing what they observe and think can progress be made. The game’s demo offers a sneak peek into how the mechanics work, with just enough intrigue to get players speculating wildly about the full release.

A Community-Driven Development

What sets Eleven Puzzles apart is how they engage directly with their fanbase. Their Discord channel is buzzing with players dissecting the demo and comparing theories about the Cryptic Killer’s motives. If you’re the sort of gamer who loves to analyze every clue, join the discussion on their Discord server, or dive into their social channels on and .

As for the Steam demo, early reactions suggest it’s already delivering heart-pounding tension, with puzzles that balance just enough difficulty to make every solved riddle feel satisfying. Feedback from the demo will likely help shape the final product, so don’t miss your chance to potentially leave your own mark on the game’s development.

Tips for Surviving the Experiment

Got your eye on the full release? Here are some non-spoiler survival tips to get your cryptic adventure started:

1. Communicate Often and Clearly – Even small details matter. If something catches your attention, mention it to your co-op partner. Sometimes the solution might hinge on a seemingly insignificant observation.

2. Take Notes – Keep a notepad handy, or jot down clues digitally. Collaborative puzzles can require remembering multiple steps, and it’s easy to lose track in the heat of the moment.

3. Be Patient – It’s normal to get frustrated if progress slows, but staying calm often leads to those “aha” breakthroughs more quickly. Good teamwork beats guesswork any day.

When and Where to Play

Parallel Experiment launches on Steam on March 6th, 2025. If you’re eager to sharpen your puzzle-solving skills beforehand, head to the Steam page to download the demo right now.

With Eleven Puzzles’ track record for crafting engaging co-op challenges, this game promises an intense, thoughtful race against the clock. So, grab a friend and prepare to put your communication skills to the ultimate test. Will you and your partner survive the experiment?