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秘封ナイトメアダイアリー ~ Violet Detector.

App ID 924650
App Type Game
Store Name Hifuu Nightmare Diary ~ Violet Detector.
Developer
Publisher Mediascape Co., Ltd.
Supported Systems Windows
Last Changenumber 30879402
Last Record Update 1 September 2025 – 07:08:16 UTC ()
Release Date 4 September 2018 – 22:26:58 UTC ()

東方Project第16.5弾! 超能力女子高生「宇佐見菫子」に、突如襲いかかる幻想郷の住人達。その恐ろしくも美しい弾幕を、スマホに撮りまくり、SNS映えを狙おう! サイキカルでSNS映え狙いのシューティング幻想!

Steam price history

Current Price $10.99
Lowest Recorded Price $7.69 at -30% 17 August 2025
Currency Current Price Converted Price Lowest Recorded Price
U.S. Dollar $10.99 $10.99 $7.69 $7.69 at -30%
Russian Ruble 269 ₽ $3.24 -70.51% $2.26 188 ₽ at -30%
Kazakhstani Tenge 1950₸ $3.60 -67.16% $2.52 1365₸ at -30%
Brazilian Real R$ 22,79 $4.28 -61.02% $2.99 R$ 15,95 at -30%
Indian Rupee ₹ 379 $4.30 -60.87% $3.00 ₹ 265 at -30%
Ukrainian Hryvnia 179₴ $4.34 -60.46% $3.03 125₴ at -30%
Indonesian Rupiah Rp 78999 $4.82 -56.09% $3.37 Rp 55299 at -30%
South African Rand R 85.00 $4.89 -55.47% $3.42 R 59.50 at -30%
Vietnamese Dong 130000₫ $4.92 -55.17% $3.44 91000₫ at -30%
Colombian Peso COL$ 20000 $5.13 -53.24% $3.59 COL$ 14000 at -30%
Chilean Peso CLP$ 4900 $5.14 -53.14% $3.60 CLP$ 3430 at -30%
Chinese Yuan ¥ 39 $5.47 -50.15% $3.83 ¥ 27.30 at -30%
Philippine Peso ₱319.95 $5.60 -49.00% $3.92 ₱223.96 at -30%
South Asia - USD $5.89 $5.89 -46.41% $4.12 $4.12 at -30%
Malaysian Ringgit RM25.50 $6.06 -44.84% $4.24 RM17.85 at -30%
Uruguayan Peso $U249 $6.19 -43.59% $4.33 $U174 at -30%
Thai Baht ฿199.00 $6.25 -43.07% $4.37 ฿139.30 at -30%
Saudi Riyal 23.95 SR $6.38 -41.90% $4.46 16.76 SR at -30%
CIS - U.S. Dollar $6.69 $6.69 -39.13% $4.68 $4.68 at -30%
Mexican Peso Mex$ 123.99 $6.75 -38.56% $4.72 Mex$ 86.79 at -30%
Peruvian Sol S/.24.00 $6.87 -37.46% $4.81 S/.16.80 at -30%
Taiwan Dollar NT$ 208 $6.88 -37.35% $4.79 NT$ 145 at -30%
Kuwaiti Dinar 2.15 KD $7.04 -35.91% $4.91 1.50 KD at -30%
Qatari Riyal 26.99 QR $7.40 -32.60% $5.18 18.89 QR at -30%
Hong Kong Dollar HK$ 58.00 $7.45 -32.16% $5.21 HK$ 40.60 at -30%
Japanese Yen ¥ 1100 $7.46 -32.10% $5.22 ¥ 770 at -30%
Norwegian Krone 79,00 kr $8.04 -26.84% $5.62 55,30 kr at -30%
New Zealand Dollar NZ$ 13.49 $8.05 -26.75% $5.63 NZ$ 9.44 at -30%
South Korean Won ₩ 11500 $8.29 -24.50% $5.80 ₩ 8050 at -30%
Singapore Dollar S$11.00 $8.59 -21.83% $6.01 S$7.70 at -30%
U.A.E. Dirham 32.00 AED $8.71 -20.72% $6.09 22.40 AED at -30%
Canadian Dollar CDN$ 12.49 $9.06 -17.50% $6.34 CDN$ 8.74 at -30%
Costa Rican Colon ₡5000 $9.92 -9.65% $6.95 ₡3500 at -30%
Australian Dollar A$ 15.50 $10.34 -5.89% $7.23 A$ 10.85 at -30%
Euro 8,99€ $10.57 -3.78% $7.39 6,29€ at -30%
LATAM - U.S. Dollar $10.99 $10.99 $7.69 $7.69 at -30%
MENA - U.S. Dollar $10.99 $10.99 $7.69 $7.69 at -30%
Polish Zloty 39,99zł $11.07 +0.78% $7.75 27,99zł at -30%
British Pound £8.29 $11.27 +2.60% $7.88 £5.80 at -30%
Israeli New Shekel ₪40.95 $12.22 +11.21% $8.55 ₪28.66 at -30%
Swiss Franc CHF 11.50 $14.47 +31.67% $10.12 CHF 8.05 at -30%
Valve suggested prices are shown on package pages.

Price history

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View lowest recorded prices on Steam store pages by using our browser extension.

Additional Information

Developer 上海アリス幻樂団
metacritic_name 秘封ナイトメアダイアリー ~ Violet Detector.
controller_support partial
ReleaseState released
Publisher Mediascape Co., Ltd.
Store Release Date 10 August 2018 – 07:00:00 UTC ()
osarch empty string
community_hub_visible Yes
Primary Genre Indie (23)
Store Genres Action (1), Indie (23)
Steam Release Date 4 September 2018 – 22:26:58 UTC ()
Original Release Date 10 August 2018 – 07:00:00 UTC () (1533884400)
Store Asset Modification Time 1 November 2022 – 07:03:40 UTC () (1667286220)
library_assets
library_capsuleen,ja
library_heroen,ja
library_logoen,ja
logo_position ↴
pinned_positionCenterCenter
width_pct100
height_pct100
name_localized
japanese秘封ナイトメアダイアリー ~ Violet Detector.
englishHifuu Nightmare Diary ~ Violet Detector.
review_score 6
review_percentage 75
Steam Deck Compatibility
  • Steam Deck:
  • Valve is still working on adding support for this game on Steam Deck
  •  
  • SteamOS:
  • Valve is still working on adding support for this game on SteamOS
  •  
  • category: Unsupported
  • steamos_compatibility: Unsupported
  • test_timestamp: 24 June 2022 – 00:00:00 UTC
  • tested_build_id: 3030871
  • configuration:
    supported_inputgamepad
    requires_manual_keyboard_invoke0
    requires_non_controller_launcher_nav1
    primary_player_is_controller_slot_00
    non_deck_display_glyphs0
    small_text0
    requires_internet_for_setup0
    requires_internet_for_singleplayer0
    recommended_runtimeproton-stable
    requires_h2640
    requires_voice_files0
    gamescope_frame_limiter_not_supported0
    hdr_support0
First seen on SteamDB 14 August 2018 – 07:26:28 UTC (), in changelist #4941660

Supported Languages

1 Languages Interface Full Audio Subtitles
Japanese Yes Yes
clienticon ee527a6bea4c8c0b8c2fb132f5767d0a11120b1e
clienttga 55be5f4788825659b9a8968f4b17b354534f736e
icon 4737667875bbd4e28aa2a41654fe8d3126d80da3
logo e2e4e1a4c6aea52f64a98587a3165e61eea90f78
logo_small e2e4e1a4c6aea52f64a98587a3165e61eea90f78_thumb
small_capsule
englishcapsule_231x87.jpg
header_image
englishheader.jpg
library_assets_full
library_capsule ↴
image/englishlibrary_600x900.jpg
image/japaneselibrary_600x900_japanese.jpg
image2x/englishlibrary_600x900_2x.jpg
image2x/japaneselibrary_600x900_japanese_2x.jpg
library_hero ↴
image/englishlibrary_hero.jpg
image/japaneselibrary_hero_japanese.jpg
library_logo ↴
image/englishlogo.png
image/japaneselogo_japanese.png
image2x/englishlogo_2x.png
image2x/japaneselogo_japanese_2x.png
logo_position/pinned_positionCenterCenter
logo_position/width_pct100
logo_position/height_pct100
Assets
main_capsulecapsule_616x353.jpg
small_capsulecapsule_231x87.jpg
headerheader.jpg
page_backgroundpage_bg_generated_v6b.jpg
hero_capsulehero_capsule.jpg
library_capsulelibrary_600x900.jpg
library_capsule_2xlibrary_600x900_2x.jpg
library_herolibrary_hero.jpg
community_icon4737667875bbd4e28aa2a41654fe8d3126d80da3.jpg
page_background_pathapp/924650
raw_page_backgroundpage_bg_raw.jpg
timestamp1 November 2022 – 07:04:07 UTC
Trailers
256725500 ↴
trailer_name予告
trailer_category0
trailer_480p/video/webm256725500/movie480.webm
trailer_480p/video/mp4256725500/movie480.mp4
trailer_max/video/webm256725500/movie_max.webm
trailer_max/video/mp4256725500/movie_max.mp4
microtrailer/video/webm924650/178788/e437c6b40b111b77c5a05797df43c1775a1ec8fc/1751164725/microtrailer.webm
microtrailer/video/mp4924650/178788/e437c6b40b111b77c5a05797df43c1775a1ec8fc/1751164725/microtrailer.mp4
screenshot_medium256725500/movie.293x165.jpg
screenshot_full256725500/movie_full.jpg
trailer_base_id178788
all_agestrue
is_highlighttrue
timestamp1534399399
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