Sister Other Paranoia

Sister Other Paranoia

Released Aug 2026

A dark visual novel by acclaimed creator nyalra. Overly sensitive to other people's emotions, the protagonist—a light novel writer—develops the ability to read minds, only to be driven even deeper into isolation. His sole remaining comfort is his younger sister, gifted yet lonely.

73% positive · 700 reviews
Not yet
Released, but content still planned
High confidence
Content Planned
Not yet
Released, but content still planned
High confidence
Content Planned

Where to buy

Steam $7.99 $9.99 −20%
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Evaluation

Sister Other Paranoia launched on August 14, 2026 — just one day before today's assessment date. The game is a dark visual novel developed by HazeDenki and published by Serenity Forge. Developer communications leading up to launch consisted of a dev diary series (starting January 4, 2026) and a wishlist milestone celebration, all building toward the August 14 release. The launch announcement was posted on August 15, 2026, confirming the game is now available. The store lists two DLC items: a playtest (released July 23, 2026 as a pre-release build) and a Soundtrack DLC that is listed but not yet released. Because the soundtrack is already listed on the store without a release date, additional content is on the way. There is no indication from the developer of further story content or expansions beyond this.
Evidence
Developer announced that Sister Other Paranoia is now available on Steam as of August 14, 2026.
news post · Aug 15, 2026 source content shipped
high
The Sister Other Paranoia Soundtrack DLC is listed on the store but has not yet been released and has no release date.
dlc listing source content planned
high

Content

2 of 2 released · no outstanding content

Media

Details

Developer
Publisher
Serenity Forge
Achievements
—
Platform
Windows
Controller
partial support
Steam Deck
Playable
Players
Single-player

About this game

★ A dark visual novel created by acclaimed creator nyalra

■ Story

“Onii-chan, you really are a lonely person.”

“Did you lose faith in me?”

“No. I love you, onii-chan.”

Unable to bear the ugliness of the world and terrified of other people, the protagonist develops the ability to read minds.

He shuts himself away and submits a light novel he wrote, which unexpectedly wins a newcomer’s award. But the jealousy and envy that follow only deepen his distrust of the few human relationships he still has. Those around him hurt his fragile heart without even realizing it.

His only remaining comfort is his younger sister, who lives with him.

Clinging to each other just to stay alive, the two sink night after night into a twisted, unhealthy codependency.

―I keep living alone, talking about my own prejudices and cursing the world. Day after day.

    I ripped off Dostoevsky, half-assed it into something modern, and turned it into a light-novels.
    I mean, I tried. In my own stupid way.
    Had the heroines talk about “existentialism” like it was supposed to mean something.

■Game Overview

The gameplay is an old-school, straight-up classic visual novel. The text fills the entire screen, so read as much as you want—or just right-click to hide it and enjoy the art. That’s it. Read, click, and vibe.

Live through a gloomy, suffocating real world through an overly sensitive protagonist… then come home and savor the only happiness left in his life: the time he spends with his little sister, his one true comfort.

As the friction with the people around you keeps piling up, there’ll be moments when their petty thoughts make you feel actual murderous rage. And in those moments, you can use your mind-reading ability to drive them to suicide.

That snide bastard. That arrogant asshole. Hit them right where it hurts—right in the deep-seated insecurities they never want anyone to see—and take them out. It’s not like you’re killing them with your own hands, so you won’t get caught. The ones truly at fault are the tasteless, mindless conformists who do nothing but obey society without a shred of aesthetic sense.

…But is that really okay?

What is happiness, anyway?

And in the end—what kind of future will the protagonist and his sister walk into?

Witness it with your own eyes.

■About Streaming and Gameplay Videos

You are free to stream or upload videos of this game without prior permission, whether you are an individual or an organization.

There are no restrictions on which parts of the game may be shown, and you may stream the entire game, including spoilers. Monetization—including ad revenue, donations, and channel memberships—is fully permitted.

Please feel free to stream and share your playthroughs!

■Staff

Scenario & Director: nyalra

Artwork: Ohisashiburi

Music: Aiobahn +81

UI Design: Maruino

Logo Design: Yuto Hama

Programming: HAYAO

Last evaluated Aug 15, 2026
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