Experiment 15

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Experiment 15 is a two-player online co-op psychological horror puzzle game where you share control of a single body. One controls the body, the other the mind. Communicate, combine what each of you can perceive, and survive a series of disturbing experiments.

Developer: HumanGen Games
Released: Coming soon
Price: Paid
Platforms
Languages: English

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Update posts

0 posts

Posts announcing an update, tagged as patch notes or not

Last 90 days · as of 20 Oct, 14:25 UTC

How this is measured

Posts in a game's official Steam news feed that announce an update: tagged as patch notes by the developer, or plainly about a patch or a released update.

News checked every 180 days. Observed since 20 Oct 2026.

An announcement is not a build. Developers can ship updates without a post, or post about several updates at once.
Untagged posts are recognised from their words, so a few updates are missed and a few other posts may be counted. Tagged posts are marked Patch notes on the Updates tab; recognised ones are marked Update.
Older posts are being read back through each game's history, most played games first, so months before October 2026 fill in over the coming days.

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

Announcements

No posts seen yet.

From the game’s Steam news feed, last checked 20 Oct, 14:25 UTC. An announcement is not a build: games can update without posting. Every public build we saw is on the Builds tab.

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