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Marshmallow Imouto Succubus

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App ID 2243980
App Type Game
Developer
Publisher Sekai Project
Supported Systems Windows
Technologies KiriKiri Engine
Last Changenumber 29010099
Last Record Update 15 May 2025 – 19:24:39 UTC ()
Release Date 22 September 2023 – 18:55:19 UTC ()
❓ 65.38%
17 reviews
0
In-Game

Tsukikawa Keisuke had a strange dream. That dream involved his younger sister but instead of her usual, innocent self, she had lust in her eyes. So he finds out that a succubus lurks within her! How will he choose between his innocent sister and the allure of a lustful succubus?!

Steam price history

Current Price $19.99
Lowest Recorded Price $9.99 at -50% 3 March 2025
Currency Current Price Converted Price Lowest Recorded Price
U.S. Dollar $19.99 $19.99 $9.99 $9.99 at -50%
South Asia - USD $8.19 $8.19 -59.03% $4.09 $4.09 at -50%
Russian Ruble 710 ₽ $9.04 -54.75% $4.52 355 ₽ at -50%
Kazakhstani Tenge 5200₸ $9.74 -51.25% $4.87 2600₸ at -50%
Ukrainian Hryvnia 415₴ $9.93 -50.30% $4.95 207₴ at -50%
Vietnamese Dong 260000₫ $9.94 -50.26% $4.97 130000₫ at -50%
Indian Rupee ₹ 880 $10.19 -49.00% $5.09 ₹ 440 at -50%
Indonesian Rupiah Rp 165999 $10.20 -48.96% $5.10 Rp 82999 at -50%
CIS - U.S. Dollar $10.49 $10.49 -47.52% $5.24 $5.24 at -50%
LATAM - U.S. Dollar $10.49 $10.49 -47.52% $5.24 $5.24 at -50%
MENA - U.S. Dollar $10.49 $10.49 -47.52% $5.24 $5.24 at -50%
South African Rand R 185.00 $10.53 -47.32% $5.26 R 92.50 at -50%
Chinese Yuan ¥ 76 $10.59 -47.01% $5.29 ¥ 38 at -50%
Brazilian Real R$ 59,99 $10.77 -46.10% $5.38 R$ 29,99 at -50%
Philippine Peso ₱615.00 $10.81 -45.92% $5.40 ₱307.50 at -50%
Saudi Riyal 40.95 SR $10.91 -45.39% $5.45 20.47 SR at -50%
Kuwaiti Dinar 3.35 KD $10.97 -45.08% $5.47 1.67 KD at -50%
Chilean Peso CLP$ 10500 $11.04 -44.75% $5.52 CLP$ 5250 at -50%
Taiwan Dollar NT$ 328 $11.15 -44.18% $5.57 NT$ 164 at -50%
Malaysian Ringgit RM49.00 $11.56 -42.13% $5.78 RM24.50 at -50%
Colombian Peso COL$ 47500 $11.79 -40.99% $5.89 COL$ 23750 at -50%
Peruvian Sol S/.43.00 $12.07 -39.58% $6.03 S/.21.50 at -50%
Qatari Riyal 43.99 QR $12.08 -39.55% $6.04 21.99 QR at -50%
Mexican Peso Mex$ 227.99 $12.23 -38.81% $6.11 Mex$ 113.99 at -50%
Thai Baht ฿400.00 $12.44 -37.72% $6.22 ฿200.00 at -50%
U.A.E. Dirham 53.00 AED $14.42 -27.82% $7.21 26.50 AED at -50%
Singapore Dollar S$18.50 $14.47 -27.60% $7.23 S$9.25 at -50%
Uruguayan Peso $U595 $14.80 -25.96% $7.38 $U297 at -50%
South Korean Won ₩ 21500 $15.57 -22.11% $7.78 ₩ 10750 at -50%
Japanese Yen ¥ 2300 $15.69 -21.49% $7.84 ¥ 1150 at -50%
Hong Kong Dollar HK$ 125.00 $15.92 -20.34% $7.96 HK$ 62.50 at -50%
Costa Rican Colon ₡8500 $16.85 -15.70% $8.42 ₡4250 at -50%
New Zealand Dollar NZ$ 28.99 $17.40 -12.95% $8.69 NZ$ 14.49 at -50%
Canadian Dollar CDN$ 25.99 $19.10 -4.43% $9.54 CDN$ 12.99 at -50%
Australian Dollar A$ 29.50 $19.33 -3.29% $9.66 A$ 14.75 at -50%
Norwegian Krone 220,00 kr $21.84 +9.26% $10.92 110,00 kr at -50%
Israeli New Shekel ₪73.95 $22.07 +10.43% $11.03 ₪36.97 at -50%
British Pound £16.75 $22.66 +13.38% $11.32 £8.37 at -50%
Euro 19,50€ $22.91 +14.64% $11.45 9,75€ at -50%
Polish Zloty 91,99zł $25.42 +27.19% $12.71 45,99zł at -50%
Swiss Franc CHF 21.99 $27.74 +38.81% $13.86 CHF 10.99 at -50%
Valve suggested prices are shown on package pages.

Price history

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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 Orcsoft
ReleaseState released
Publisher Sekai Project
Store Release Date 22 September 2023 – 18:55:22 UTC ()
osarch empty string
community_hub_visible Yes
Primary Genre Adventure (25)
Store Genres Adventure (25), Casual (4)
Steam Release Date 22 September 2023 – 18:55:19 UTC ()
Store Asset Modification Time 22 September 2023 – 05:34:53 UTC () (1695360893)
library_assets
library_capsuleen,zh-cn,ja
library_heroen
library_logoen,ja,zh-cn
logo_position ↴
pinned_positionBottomLeft
width_pct50
height_pct50
osextended empty string
name_localized
japaneseましゅまろ☆いもうと☆さっきゅばす☆
schinese棉花糖☆妹妹☆魅魔
review_score 6
review_percentage 76
Detected Technologies (?) KiriKiri Engine, Vorbis SDK
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: 12 October 2023 – 00:00:00 UTC
  • tested_build_id: 12263374
  • 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-8.0-4
    requires_h2640
    requires_voice_files0
    gamescope_frame_limiter_not_supported0
    hdr_support0
Content Descriptors Some Nudity or Sexual Content (1), General Mature Content (5)
First seen on SteamDB 6 December 2022 – 02:37:59 UTC (), in changelist #16973868
Content Descriptors (Including DLC) Some Nudity or Sexual Content (1), General Mature Content (5)

Supported Languages

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

Assets

Load all asset images
clienticon 22e3d409764c8b5a6e64c3b2a221a898e53643cb
clienttga 39f846a938aa3e62b264349b1e3c96127e177c73
icon 1f76ef444f068a0e6512dd3d307e496f085ebd82
small_capsule
englishcapsule_231x87.jpg
japanesecapsule_231x87_japanese.jpg
schinesecapsule_231x87_schinese.jpg
header_image
englishheader.jpg
schineseheader_schinese.jpg
japaneseheader_japanese.jpg
library_assets_full
library_capsule ↴
image/englishlibrary_600x900.jpg
image/schineselibrary_600x900_schinese.jpg
image/japaneselibrary_600x900_japanese.jpg
image2x/englishlibrary_600x900_2x.jpg
image2x/schineselibrary_600x900_schinese_2x.jpg
image2x/japaneselibrary_600x900_japanese_2x.jpg
library_hero ↴
image/englishlibrary_hero.jpg
image2x/englishlibrary_hero_2x.jpg
library_logo ↴
image/englishlogo.png
image/japaneselogo_japanese.png
image/schineselogo_schinese.png
logo_position/pinned_positionBottomLeft
logo_position/width_pct50
logo_position/height_pct50
Assets
main_capsulecapsule_616x353.jpg
small_capsulecapsule_231x87.jpg
headerheader.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_icon1f76ef444f068a0e6512dd3d307e496f085ebd82.jpg
page_background_pathapp/2243980
timestamp11 October 2024 – 03:14:54 UTC
Trailers
256965636 ↴
trailer_nameTeaser Trailer
trailer_category0
trailer_480p/video/webm256965636/movie480_vp9.webm
trailer_480p/video/mp4256965636/movie480.mp4
trailer_max/video/webm256965636/movie_max_vp9.webm
trailer_max/video/mp4256965636/movie_max.mp4
microtrailer/video/webm2243980/600571/23ac0b76b052cccae2d83cb5351212a930d954e2/1751527706/microtrailer.webm
microtrailer/video/mp42243980/600571/23ac0b76b052cccae2d83cb5351212a930d954e2/1751527706/microtrailer.mp4
screenshot_medium256965636/movie.293x165.jpg
screenshot_full256965636/movie_full.jpg
trailer_base_id600571
all_agestrue
is_highlighttrue
timestamp1694222092
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