Sister Other Paranoia

Wishlist Follow Ignore Launch Unwatch Watch

App ID	4240150
App Type	Game
Developer	HazeDenki
Publisher	Serenity Forge
Franchise	Serenity Forge
Supported Systems	Windows
Technologies	Unity Engine
Last Changenumber	39283029
Last Record Update	28 September 2026 – 19:40:42 UTC ()
Release Date	15 August 2026 – 03:00:14 UTC ()

😏 70.17%

682 reviews

In-Game

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.

Additional Information

Developer

HazeDenki

controller_support

partial

ReleaseState

released

Publisher

Serenity Forge

Store Release Date

15 August 2026 – 03:00:19 UTC ()

osarch

community_hub_visible

Yes

Social Media

https://discord.gg/v776EdbgwM
https://x.com/__your_sister__
https://www.xiaohongshu.com/user/profile/694d02330000000026003b3f

Primary Genre

Adventure (25)

Store Genres

Adventure (25), Indie (23)

Steam Release Date

15 August 2026 – 03:00:14 UTC ()

Store Asset Modification Time

15 August 2026 – 08:53:10 UTC () (1786783990)

library_assets

library_capsule	ja,en,zh-cn
library_hero	en,ja,zh-cn
library_hero_blur	en,ja,zh-cn
library_logo	en,ja,zh-cn
library_header	ja,en,zh-cn
logo_position ↴
pinned_position	BottomLeft
width_pct	26.41432807445227
height_pct	71.26622357784808

osextended

empty string

name_localized

japanese	妹、他者、パラノイア
schinese	妹妹、他人、妄想症

review_score

review_percentage

Detected Technologies

Unity Engine, Mono SDK, SteamworksNET SDK, UnityBurst SDK, UnityURP SDK, cURL SDK

Steam Deck Compatibility

Steam Deck:
Some in-game text is small and may be difficult to read
All functionality is accessible when using the default controller configuration
This game shows Steam Deck controller icons
This game's default graphics configuration performs well on Steam Deck
SteamOS:
This game runs successfully on SteamOS
category: Playable
steamos_compatibility: Compatible
steam_machine_compatibility: 3
test_timestamp: 4 August 2026 – 12:54:03 UTC
tested_build_id: 24308421

steam_machine_tests:

0 ↴
display	4
token	#SteamMachine_TestResult_DefaultControllerConfigFullyFunctional
1 ↴
display	4
token	#SteamMachine_TestResult_ControllerGlyphsMatchDevice
2 ↴
display	4
token	#SteamMachine_TestResult_DefaultConfigurationIsPerformant

configuration:

supported_input	other
requires_manual_keyboard_invoke	0
requires_non_controller_launcher_nav	0
primary_player_is_controller_slot_0	0
non_deck_display_glyphs	0
small_text	1
requires_internet_for_setup	0
requires_internet_for_singleplayer	0
recommended_runtime	proton-11.0-2RC
requires_h264	0
requires_voice_files	0
gamescope_frame_limiter_not_supported	0
hdr_support	0
requires_proton_soundfonts	0

Content Descriptors

Frequent Violence or Gore (2), General Mature Content (5)

controllertagwizard

Yes

First seen on SteamDB

8 December 2025 – 06:01:45 UTC (), in changelist #32663994

Content Descriptors (Including DLC)

Frequent Violence or Gore (2), General Mature Content (5)

Supported Languages

3 Languages	Interface	Subtitles
English	Yes	Yes
Simplified Chinese	Yes	Yes
Japanese	Yes	Yes

Hardware Categories

Partial Controller Support

Assets

Load all asset images

clienticon

8877229a928152353abe2099899ef0c3f8f11c6b

icon

8877229a928152353abe2099899ef0c3f8f11c6b

clienticns

981d37a79bf0c4651e36810e006a39a6802dffec

small_capsule

english	bc1d50bce601c05c09085aac6c6ee6ce3aafdd81/capsule_231x87.jpg
japanese	bc1d50bce601c05c09085aac6c6ee6ce3aafdd81/capsule_231x87_japanese.jpg
schinese	bc1d50bce601c05c09085aac6c6ee6ce3aafdd81/capsule_231x87_schinese.jpg

header_image

english	f04bd496b142e15f6d1fad725bb2d9a4db49bccf/header.jpg
japanese	8d9c133cbced1a1b3011ce3b263bb7d89dd82165/header_japanese.jpg
schinese	f04bd496b142e15f6d1fad725bb2d9a4db49bccf/header_schinese.jpg

library_assets_full

library_capsule ↴
image/japanese	5ab9f0f20a3f5de58d26b21347efa0cb0c3225bd/library_capsule_japanese.jpg
image/english	b900b3fb1f29598057e965d3a1640f7ac67657c0/library_capsule.jpg
image/schinese	b900b3fb1f29598057e965d3a1640f7ac67657c0/library_capsule_schinese.jpg
image2x/japanese	5ab9f0f20a3f5de58d26b21347efa0cb0c3225bd/library_capsule_japanese_2x.jpg
image2x/english	b900b3fb1f29598057e965d3a1640f7ac67657c0/library_capsule_2x.jpg
image2x/schinese	b900b3fb1f29598057e965d3a1640f7ac67657c0/library_capsule_schinese_2x.jpg
library_hero ↴
image2x/english	89c2c0611d2ed7321c08d95f08f6a6859b91f503/library_hero_2x.jpg
image2x/japanese	89c2c0611d2ed7321c08d95f08f6a6859b91f503/library_hero_japanese_2x.jpg
image2x/schinese	89c2c0611d2ed7321c08d95f08f6a6859b91f503/library_hero_schinese_2x.jpg
image/english	89c2c0611d2ed7321c08d95f08f6a6859b91f503/library_hero.jpg
image/japanese	89c2c0611d2ed7321c08d95f08f6a6859b91f503/library_hero_japanese.jpg
image/schinese	89c2c0611d2ed7321c08d95f08f6a6859b91f503/library_hero_schinese.jpg
library_hero_blur ↴
image/english	89c2c0611d2ed7321c08d95f08f6a6859b91f503/library_hero_blur.jpg
image/japanese	89c2c0611d2ed7321c08d95f08f6a6859b91f503/library_hero_blur_japanese.jpg
image/schinese	89c2c0611d2ed7321c08d95f08f6a6859b91f503/library_hero_blur_schinese.jpg
library_logo ↴
image/english	f377bae380d5d12af08ebc6a550dcd3d1ef3bdf6/logo.png
image/japanese	f377bae380d5d12af08ebc6a550dcd3d1ef3bdf6/logo_japanese.png
image/schinese	f377bae380d5d12af08ebc6a550dcd3d1ef3bdf6/logo_schinese.png
image2x/english	f377bae380d5d12af08ebc6a550dcd3d1ef3bdf6/logo_2x.png
image2x/japanese	f377bae380d5d12af08ebc6a550dcd3d1ef3bdf6/logo_japanese_2x.png
image2x/schinese	f377bae380d5d12af08ebc6a550dcd3d1ef3bdf6/logo_schinese_2x.png
logo_position/pinned_position	BottomLeft
logo_position/width_pct	26.41432807445227
logo_position/height_pct	71.26622357784808
library_header ↴
image/japanese	8d9c133cbced1a1b3011ce3b263bb7d89dd82165/library_header_japanese.jpg
image/english	f04bd496b142e15f6d1fad725bb2d9a4db49bccf/library_header.jpg
image/schinese	f04bd496b142e15f6d1fad725bb2d9a4db49bccf/library_header_schinese.jpg
image2x/japanese	8d9c133cbced1a1b3011ce3b263bb7d89dd82165/library_header_japanese_2x.jpg
image2x/english	f04bd496b142e15f6d1fad725bb2d9a4db49bccf/library_header_2x.jpg
image2x/schinese	f04bd496b142e15f6d1fad725bb2d9a4db49bccf/library_header_schinese_2x.jpg

Assets

main_capsule	7305612081fdf70fd0ec5f5ad15f76be8bcd0b5a/capsule_616x353.jpg
main_capsule_2x	7305612081fdf70fd0ec5f5ad15f76be8bcd0b5a/capsule_616x353_2x.jpg
small_capsule	bc1d50bce601c05c09085aac6c6ee6ce3aafdd81/capsule_231x87.jpg
small_capsule_2x	bc1d50bce601c05c09085aac6c6ee6ce3aafdd81/capsule_231x87_2x.jpg
header	f04bd496b142e15f6d1fad725bb2d9a4db49bccf/header.jpg
header_2x	f04bd496b142e15f6d1fad725bb2d9a4db49bccf/header_2x.jpg
page_background	7392b475b8f35ed2860024aec6a23eeedd76ff53/page_bg_v6.jpg
hero_capsule	755396df9b19dbb2c47d049ea9b7e4a5c04880d1/hero_capsule.jpg
hero_capsule_2x	755396df9b19dbb2c47d049ea9b7e4a5c04880d1/hero_capsule_2x.jpg
library_capsule	b900b3fb1f29598057e965d3a1640f7ac67657c0/library_capsule.jpg
library_capsule_2x	b900b3fb1f29598057e965d3a1640f7ac67657c0/library_capsule_2x.jpg
library_hero	89c2c0611d2ed7321c08d95f08f6a6859b91f503/library_hero.jpg
library_hero_2x	89c2c0611d2ed7321c08d95f08f6a6859b91f503/library_hero_2x.jpg
community_icon	8877229a928152353abe2099899ef0c3f8f11c6b.jpg
page_background_path	app/4240150
raw_page_background	7392b475b8f35ed2860024aec6a23eeedd76ff53/page_bg_raw.jpg
last_modified	15 September 2026 – 21:09:11 UTC
timestamp	15 September 2026 – 21:09:11 UTC

Trailer 1287863 ↴

trailer_name	Launch Trailer
trailer_category	3
microtrailer ↴
video/webm	4240150/918175042/ff72cb973e78864bbb001de54d8fe54641fabcc4/1786759139/microtrailer.webm
video/mp4	4240150/918175042/ff72cb973e78864bbb001de54d8fe54641fabcc4/1786759139/microtrailer.mp4
adaptive_trailers ↴
dash_av1	4240150/918175042/ff72cb973e78864bbb001de54d8fe54641fabcc4/1786759139/dash_av1.mpd
dash_h264	4240150/918175042/ff72cb973e78864bbb001de54d8fe54641fabcc4/1786759139/dash_h264.mpd
hls_h264	4240150/918175042/ff72cb973e78864bbb001de54d8fe54641fabcc4/1786759139/hls_264_master.m3u8
screenshot_medium	257399809/dd3779881325c5de2e3e8ef8f99b1ea4e636ef30/movie_600x337.jpg
screenshot_full	257399809/dd3779881325c5de2e3e8ef8f99b1ea4e636ef30/movie_full.jpg
all_ages	true
is_highlight	true
timestamp	15 August 2026 – 03:04:49 UTC

Trailer 1062730 ↴

trailer_name	BGMMovie
trailer_category	2
microtrailer ↴
video/webm	4240150/1335533180/f7eac95bdb6c8fe5bc90e37f1d43c696c5d14c22/1786085056/microtrailer.webm
video/mp4	4240150/1335533180/f7eac95bdb6c8fe5bc90e37f1d43c696c5d14c22/1786085056/microtrailer.mp4
adaptive_trailers ↴
dash_av1	4240150/1335533180/f7eac95bdb6c8fe5bc90e37f1d43c696c5d14c22/1786085056/dash_av1.mpd
dash_h264	4240150/1335533180/f7eac95bdb6c8fe5bc90e37f1d43c696c5d14c22/1786085056/dash_h264.mpd
hls_h264	4240150/1335533180/f7eac95bdb6c8fe5bc90e37f1d43c696c5d14c22/1786085056/hls_264_master.m3u8
screenshot_medium	257256709/0629a6aab9c34571a0c3585869ae9bdbc975bb92/movie_600x337.jpg
screenshot_full	257256709/0629a6aab9c34571a0c3585869ae9bdbc975bb92/movie_full.jpg
all_ages	true
is_highlight	true
timestamp	7 August 2026 – 06:57:42 UTC

Builds

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Sister Other Paranoia

Additional Information

Supported Languages

Tags

Categories

Hardware Categories

Assets

Trailer 1287863 ↴

Trailer 1062730 ↴

Builds