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Senpai and the Mysterious Island

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App ID 3070600
App Type Game
Developer
Publisher Saikey Studios
Franchise Saikey Studios
Supported Systems Windows
Technologies RPGMaker Engine
Last Changenumber 30138699
Last Record Update 18 July 2025 – 20:18:47 UTC ()
Release Date 7 December 2024 – 00:35:02 UTC ()
❓ 65.93%
28 reviews
1
In-Game

An RPG where you get to uncover the secrets of a mysterious island inhabited by succubi that was rumored to contain a lost ancient technology. Play as either the warrior Hula Elstia, or Sonia Lanternlily to a variety of combat styles, and dress them up with various outfits.

Additional Information

Developer Ruhut Soft
controller_support partial
community_visible_stats Yes
ReleaseState released
Publisher Saikey Studios
Store Release Date 7 December 2024 – 00:35:06 UTC ()
osarch empty string
community_hub_visible Yes
Social Media https://discord.com/invite/EaqZEsP3pV
https://x.com/SaikeyStudios
https://www.youtube.com/@saikeystudios/
Primary Genre Adventure (25)
Store Genres Adventure (25), Casual (4), RPG (3)
Steam Release Date 7 December 2024 – 00:35:02 UTC ()
Store Asset Modification Time 18 July 2025 – 17:53:30 UTC () (1752861210)
library_assets
library_capsulezh-cn,ja,en
library_heroen
library_logozh-cn,ja,en
library_headeren,zh-cn,ja
logo_position ↴
pinned_positionBottomCenter
width_pct47.1659674676572
height_pct74.7392741233278
osextended empty string
name_localized
japanese先輩と不思議な島
schinese前辈与不可思议之岛
review_score 6
review_percentage 75
Detected Technologies (?) RPGMaker Engine, Greenworks SDK, NWJS SDK, NodeJS SDK
Content Descriptors General Mature Content (5)
controllertagwizard Yes
First seen on SteamDB 22 June 2024 – 10:10:33 UTC (), in changelist #24076953
Content Descriptors (Including DLC) General Mature Content (5)

Supported Languages

4 Languages Interface Full Audio Subtitles
English Yes Yes
Japanese Yes Yes Yes
Simplified Chinese Yes Yes
Traditional Chinese Yes Yes

Tags

🗺️ Adventure 🎲 RPG 🍑 Nudity 🔞 Sexual Content 🌸 Anime 🥵 Hentai 🧸 Cute 👻 Roguelike 🏽 2D 🏰 Mystery Dungeon 🙈 Mature 🎭 Fantasy 🫣 NSFW 😌 Casual 🦹 Character Customization 💥 Action RPG 🧱 Sandbox 🏰 Dungeon Crawler 🎨 Colorful 🏳️‍🌈 LGBTQ+

Categories

Single-player Steam Achievements Steam Cloud Family Sharing

Hardware Categories

Partial Controller Support DualShock Controllers (USB Only) DualShock Controllers DualSense Controllers (USB Only)

Assets

Load all asset images
clienticon 977f94eb0d65dea1f3dcc1d3108f57121b631513
clienttga 6bce711d41a6cd72c47a2c55ae7321794db09f44
icon 5b19a8d86e3183db3cfd3d6afde543d5f44d8fd6
small_capsule
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schinesecapsule_231x87_schinese.jpg
japanesecapsule_231x87_japanese.jpg
header_image
englishheader.jpg
schineseheader_schinese.jpg
japaneseheader_japanese.jpg
library_assets_full
library_capsule ↴
image/schineselibrary_600x900_schinese.jpg
image/japaneselibrary_600x900_japanese.jpg
image/englishlibrary_600x900.jpg
image2x/schineselibrary_600x900_schinese_2x.jpg
image2x/japaneselibrary_600x900_japanese_2x.jpg
image2x/englishlibrary_600x900_2x.jpg
library_hero ↴
image/englishlibrary_hero.jpg
image2x/englishlibrary_hero_2x.jpg
library_logo ↴
image/schineselogo_schinese.png
image/japaneselogo_japanese.png
image/englishlogo.png
image2x/schineselogo_schinese_2x.png
image2x/japaneselogo_japanese_2x.png
image2x/englishlogo_2x.png
logo_position/pinned_positionBottomCenter
logo_position/width_pct47.1659674676572
logo_position/height_pct74.7392741233278
library_header ↴
image/englishlibrary_header.jpg
image/schineselibrary_header_schinese.jpg
image/japaneselibrary_header_japanese.jpg
Assets
main_capsulef740b0b28926ea2e2935f42f41902ba0ed997610/capsule_616x353.jpg
small_capsule6829584070e496e12e7f162ebbb568c28a659fd1/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_icon5b19a8d86e3183db3cfd3d6afde543d5f44d8fd6.jpg
page_background_pathapp/3070600
raw_page_backgroundpage_bg_raw.jpg
timestamp18 July 2025 – 17:53:51 UTC
Trailers
257053416 ↴
trailer_nameMain Trailer
trailer_category0
trailer_480p/video/webm257053416/movie480_vp9.webm
trailer_480p/video/mp4257053416/movie480.mp4
trailer_max/video/webm257053416/movie_max_vp9.webm
trailer_max/video/mp4257053416/movie_max.mp4
microtrailer/video/webm3070600/752804/d48f8fda721e742c607ca5c07c7e0d771f293826/1750823389/microtrailer.webm
microtrailer/video/mp43070600/752804/d48f8fda721e742c607ca5c07c7e0d771f293826/1750823389/microtrailer.mp4
screenshot_medium257053416/movie.293x165.jpg
screenshot_full257053416/movie_full.jpg
trailer_base_id752804
all_agestrue
is_highlighttrue
timestamp1726648564

Depots

ID Configuration Size DL.
3070601 Windows English 574.53 MiB 450.18 MiB
3070602 Windows Japanese 540.04 MiB 418.60 MiB
3070603 Windows Simplified Chinese 586.55 MiB 457.69 MiB
3070604 Windows Traditional Chinese 586.53 MiB 457.69 MiB

Total size on disk is 2.23 GiB and total download size is 1.74 GiB.

Total size on disk is 574.53 MiB and total download size is 450.18 MiB, when filtered to Windows, English, no DLC depots.

Branches

Name Description Build ID Time Updated
public 16585803 30 November 2024 – 04:43:01 UTC
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