Parallel Experiment

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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.

Developer: Eleven Puzzles
Released: 5 Jun 2025
Price: $9.99
Platforms
Steam Deck: Verified
Languages: English +11
Series: Cryptic Killer

Patch announcements

0 posts

Posts the developer tagged as patch notes

Last 90 days · as of 22 Oct, 02:22 UTC

How this is measured

Posts in a game's Steam news feed that Steam tags as patch notes.

News checked every 30 days. Observed since 22 Oct 2026.

An announcement is not a build. Developers can ship updates without a post, or post about several updates at once.
Each check keeps the 10 most recent posts. Quiet games are checked as rarely as monthly, so a very busy feed can have gaps, and posts from before our first check may be missing.

Source: Steam Web API, ISteamNews/GetNewsForApp. Full methodology

Announcements

Patch 2.1.0 - Japanese and Korean localization
17 Sept 2026 · Community Announcements
Parallel Experiment is now Steam Deck Verified!
14 Apr 2026 · Community Announcements
Parallel Experiment - Patch 2.0.3 Patch notes
2 Apr 2026 · Community Announcements
Sales in Russia suspended due to connection issues
25 Mar 2026 · Community Announcements
Parallel Experiment - Patch 2.0.2 Patch notes
12 Mar 2026 · Community Announcements
Parallel Experiment 2.0 is here!
4 Mar 2026 · Community Announcements
Parallel Experiment - Patch 1.0.11 Patch notes
5 Feb 2026 · Community Announcements
Parallel Experiment - Patch 1.0.10 Patch notes
14 Nov 2025 · Community Announcements
Parallel Experiment - Patch 1.0.9 Patch notes
30 Oct 2025 · Community Announcements
Parallel Experiment - Patch 1.0.8
9 Oct 2025 · Community Announcements

From the game’s Steam news feed, last checked 22 Oct, 02:22 UTC. An announcement is not a build: games can update without posting. Every public build we saw is on the Builds tab.