C15 — Steam capsule
Steam capsule · 460×2152.14 : 1

C15 Free Download

by aDeCon Production

Windows · Aug 2, 2019

Download Now Data checked on Steam: Oct 20, 2026
Fit check

Is C15 worth it for you?

We tell you who should skip it, too.

Play it if you…

Good fit
  • Horror fans interested in stories about experiments and alternate realities
  • Players who prefer straightforward horror stories to elaborate plots
  • Groups interested in a cooperative mode that includes playing as the monster

Skip it if you…

Saves you a refund
  • Players seeking a deep, complex narrative may find the story’s stated simplicity limiting
  • Those who prefer a fixed story may not enjoy choices leading to multiple endings
  • Players seeking a cooperative mode with a wider range of described activities may find its scope limited to special cards

Drafted from Steam store data with AI and reviewed by an editor · How we write fit checks · Report an error

Our take on C15

Rather than beginning with a conventional monster encounter, C15 starts with a scientist’s brain experiment that sends a volunteer into another reality. Story choices lead to 3 endings, and the cooperative mode includes the option to play as the monster.

What is C15?

C15 is a horror game about Alexander Grozov, who volunteers for an experiment by neuroscientist Rage Sinner.

The scientist’s serum can move a subject’s consciousness into another reality. After arriving at Rage’s home, Grozov begins the experiment, and the story turns to his effort to escape. Choices determine which of 3 endings unfolds. The game also has a cooperative mode, with new special cards tested from time to time. These cards allow play as either a player character or the monster. The vendor calls the story simple and describes the game as horror.

How C15 plays

01Branching endings
Choices during the story determine which of 3 endings occurs.
02Cooperative mode
Special cards allow play as a player character or the monster.
03Alternate reality
The experiment moves the volunteer’s consciousness into another world.

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Picked by overlapping fit notes and genres, not an editorial comparison.

C15: platforms & release

Is C15 worth it?

It is worth it if: horror fans interested in stories about experiments and alternate realities. Skip it if: players seeking a deep, complex narrative may find the story’s stated simplicity limiting.

Where can I download C15?

Use the Download Now button on this page: it opens C15's store page, where you can choose how to get it.

What platforms is C15 on?

Windows only.

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