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The Sea-demon

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App ID 1825930
App Type Game
Store Name 孤岛海妖 The Sea-demon
Developer
Publisher 章鱼罐头制作组
Supported Systems Windows
Technologies PyGame Engine, RenPy Engine
Last Changenumber 29908045
Last Record Update 5 July 2025 – 06:11:29 UTC ()
Release Date 6 January 2023 – 07:36:45 UTC ()
❓ 81.03%
255 reviews
0
In-Game
📚 Visual Novel 🤫 Mystery 🌸 Anime 📚 Story Rich 🕵️ Detective

一组侦探小队受章鱼岛主人之邀，对六年前的海妖悬案发起挑战。她们需要在二十四小时内完成调查，并各自提交一份答案。最后，出现了七种截然不同的解答……

Steam price history

Week Long Deal, ends 20 October 2025
Current Price -28% $6.47
Lowest Recorded Price $6.47 at -28% 26 June 2025
Currency Current Price Converted Price Lowest Recorded Price
U.S. Dollar -28% $6.47 $6.47 $6.47 $6.47 at -28%
Russian Ruble -28% 252 ₽ $3.09 -52.09% $3.09 252 ₽ at -28%
Kazakhstani Tenge -28% 1872₸ $3.47 -46.33% $3.47 1872₸ at -28%
Vietnamese Dong -28% 93000₫ $3.52 -45.44% $3.52 93000₫ at -28%
Ukrainian Hryvnia -28% 148₴ $3.53 -45.30% $3.53 148₴ at -28%
Indonesian Rupiah -28% Rp 59399 $3.58 -44.61% $3.58 Rp 59399 at -28%
South Asia - USD -28% $3.59 $3.59 -44.51% $3.59 $3.59 at -28%
Chinese Yuan -28% ¥ 25.92 $3.63 -43.75% $3.63 ¥ 25.92 at -28%
Indian Rupee -28% ₹ 324 $3.69 -42.95% $3.69 ₹ 324 at -28%
South African Rand -28% R 65.52 $3.77 -41.59% $3.77 R 65.52 at -28%
Philippine Peso -28% ₱219.56 $3.78 -41.57% $3.78 ₱219.56 at -28%
Chilean Peso -28% CLP$ 3744 $3.93 -39.24% $3.93 CLP$ 3744 at -28%
Saudi Riyal -28% 14.76 SR $3.93 -39.15% $3.93 14.76 SR at -28%
Brazilian Real -28% R$ 21,59 $3.97 -38.50% $3.97 R$ 21,59 at -28%
Taiwan Dollar -28% NT$ 123 $4.02 -37.84% $4.02 NT$ 123 at -28%
CIS - U.S. Dollar -28% $4.16 $4.16 -35.70% $4.16 $4.16 at -28%
Malaysian Ringgit -28% RM17.64 $4.17 -35.48% $4.17 RM17.64 at -28%
Qatari Riyal -28% 15.83 QR $4.33 -33.01% $4.33 15.83 QR at -28%
Kuwaiti Dinar -28% 1.33 KD $4.34 -32.81% $4.34 1.33 KD at -28%
Thai Baht -28% ฿143.28 $4.37 -32.41% $4.37 ฿143.28 at -28%
Colombian Peso -28% COL$ 16920 $4.39 -32.08% $4.39 COL$ 16920 at -28%
Mexican Peso -28% Mex$ 81.35 $4.42 -31.54% $4.42 Mex$ 81.35 at -28%
Peruvian Sol -28% S/.15.12 $4.45 -31.12% $4.45 S/.15.12 at -28%
Japanese Yen -28% ¥ 720 $4.77 -26.13% $4.77 ¥ 720 at -28%
Uruguayan Peso -28% $U200 $5.00 -22.66% $5.00 $U200 at -28%
Singapore Dollar -28% S$6.48 $5.00 -22.60% $5.00 S$6.48 at -28%
South Korean Won -28% ₩ 7130 $5.02 -22.33% $5.02 ₩ 7130 at -28%
U.A.E. Dirham -28% 18.72 AED $5.09 -21.22% $5.09 18.72 AED at -28%
Hong Kong Dollar -28% HK$ 41.76 $5.37 -16.90% $5.37 HK$ 41.76 at -28%
New Zealand Dollar -28% NZ$ 9.54 $5.47 -15.37% $5.47 NZ$ 9.54 at -28%
Costa Rican Colon -28% ₡3025 $6.01 -7.05% $6.01 ₡3025 at -28%
Canadian Dollar -28% CDN$ 8.48 $6.05 -6.48% $6.05 CDN$ 8.48 at -28%
Australian Dollar -28% A$ 9.49 $6.17 -4.56% $6.17 A$ 9.49 at -28%
LATAM - U.S. Dollar -28% $6.47 $6.47 $1.97 $1.97
MENA - U.S. Dollar -28% $6.47 $6.47 $3.29 $3.29
Norwegian Krone -28% 71,28 kr $7.09 +9.65% $7.09 71,28 kr at -28%
Israeli New Shekel -28% ₪23.72 $7.15 +10.60% $7.15 ₪23.72 at -28%
British Pound -28% £5.39 $7.24 +11.97% $7.24 £5.39 at -28%
Euro -28% 6,32€ $7.37 +14.03% $7.37 6,32€ at -28%
Polish Zloty -28% 29,51zł $8.12 +25.53% $8.12 29,51zł at -28%
Swiss Franc -28% CHF 7.19 $9.06 +40.16% $9.06 CHF 7.19 at -28%
Valve suggested prices are shown on package pages.

Price history

Initializing price history graph…

Click on a currency name to load price history for that particular currency.
View lowest recorded prices on Steam store pages by using our browser extension.

Additional Information

Developer 章鱼罐头制作组
community_visible_stats Yes
ReleaseState released
Publisher 章鱼罐头制作组
Store Release Date 6 January 2023 – 07:36:49 UTC ()
osarch empty string
community_hub_visible Yes
Primary Genre Indie (23)
Store Genres Casual (4), Indie (23)
Steam Release Date 6 January 2023 – 07:36:45 UTC ()
Store Asset Modification Time 7 October 2024 – 13:22:15 UTC () (1728307335)
library_assets
library_capsuleen
library_heroen
library_logoen
logo_position ↴
pinned_positionBottomLeft
width_pct51.05058207375648
height_pct59.49893137022085
osextended empty string
review_score 8
review_percentage 88
Detected Technologies (?) PyGame Engine, RenPy Engine
Steam Deck Compatibility
  • Steam Deck:
  • All functionality is accessible when using the default controller configuration
  • In-game interface text is legible on Steam Deck
  • This game's default graphics configuration performs well on Steam Deck
  •  
  • SteamOS:
  • This game runs successfully on SteamOS
  •  
  • category: Verified
  • steamos_compatibility: Compatible
  • test_timestamp: 3 February 2023 – 00:00:00 UTC
  • tested_build_id: 10276530
  • configuration:
    supported_inputother
    requires_manual_keyboard_invoke0
    requires_non_controller_launcher_nav0
    primary_player_is_controller_slot_00
    non_deck_display_glyphs0
    small_text0
    requires_internet_for_setup0
    requires_internet_for_singleplayer0
    recommended_runtimeproton-7.0-6
    requires_h2640
    requires_voice_files0
    gamescope_frame_limiter_not_supported0
    hdr_support0
First seen on SteamDB 18 November 2021 – 05:44:42 UTC (), in changelist #13173382

Supported Languages

1 Languages Interface Full Audio Subtitles
Simplified Chinese Yes Yes

Assets

Load all asset images
clienticon edc12a3950e8a451f27ed6ce49c4c059d3601266
clienttga a1da083c0d6527cc37b2c5408a26518106d44f50
icon 55705ccbfeace648fb4cad76fa5f2416ba0b1425
small_capsule
englishe50a40a5f1ad0fd12b104f9b096abe3816d047e0/capsule_231x87.jpg
header_image
englishheader.jpg
library_assets_full
library_capsule ↴
image/englishlibrary_600x900.jpg
image2x/englishlibrary_600x900_2x.jpg
library_hero ↴
image/englishlibrary_hero.jpg
image2x/englishlibrary_hero_2x.jpg
library_logo ↴
image2x/englishlogo_2x.png
logo_position/pinned_positionBottomLeft
logo_position/width_pct51.05058207375648
logo_position/height_pct59.49893137022085
image/englishlogo.png
Assets
main_capsulecapsule_616x353.jpg
small_capsulee50a40a5f1ad0fd12b104f9b096abe3816d047e0/capsule_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
library_hero_2xlibrary_hero_2x.jpg
community_icon55705ccbfeace648fb4cad76fa5f2416ba0b1425.jpg
page_background_pathapp/1825930
raw_page_backgroundpage_bg_raw.jpg
timestamp7 October 2024 – 13:22:51 UTC

Trailer 523985 ↴

trailer_name pv2
trailer_category 0
trailer_480p ↴
video/webm 256922213/movie480_vp9.webm
video/mp4 256922213/movie480.mp4
trailer_max ↴
video/webm 256922213/movie_max_vp9.webm
video/mp4 256922213/movie_max.mp4
microtrailer ↴
video/webm 1825930/523985/41f120efc61e7c30356cdff8e8aa4cfbe3297263/1751035486/microtrailer.webm
video/mp4 1825930/523985/41f120efc61e7c30356cdff8e8aa4cfbe3297263/1751035486/microtrailer.mp4
adaptive_trailers ↴
dash_av1 1825930/523985/41f120efc61e7c30356cdff8e8aa4cfbe3297263/1751035486/dash_av1.mpd
dash_h264 1825930/523985/41f120efc61e7c30356cdff8e8aa4cfbe3297263/1751035486/dash_h264.mpd
hls_h264 1825930/523985/41f120efc61e7c30356cdff8e8aa4cfbe3297263/1751035486/hls_264_master.m3u8
screenshot_medium 256922213/movie.293x165.jpg
screenshot_full 256922213/movie_full.jpg
all_ages true
is_highlight true
timestamp 21 December 2022 – 03:37:43 UTC

Trailer 473054 ↴

trailer_name pv1
trailer_category 0
trailer_480p ↴
video/webm 256892510/movie480_vp9.webm
video/mp4 256892510/movie480.mp4
trailer_max ↴
video/webm 256892510/movie_max_vp9.webm
video/mp4 256892510/movie_max.mp4
microtrailer ↴
video/webm 1825930/473054/5964a7ee2f246c9e655b103e87673676a8e59270/1751035484/microtrailer.webm
video/mp4 1825930/473054/5964a7ee2f246c9e655b103e87673676a8e59270/1751035484/microtrailer.mp4
adaptive_trailers ↴
dash_av1 1825930/473054/5964a7ee2f246c9e655b103e87673676a8e59270/1751035484/dash_av1.mpd
dash_h264 1825930/473054/5964a7ee2f246c9e655b103e87673676a8e59270/1751035484/dash_h264.mpd
hls_h264 1825930/473054/5964a7ee2f246c9e655b103e87673676a8e59270/1751035484/hls_264_master.m3u8
screenshot_medium 256892510/movie.293x165.jpg
screenshot_full 256892510/movie_full.jpg
all_ages true
is_highlight true
timestamp 18 June 2022 – 09:55:42 UTC
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