IMHO.

Games like Seductive Sister

If Seductive Sister is your kind of game, the closest matches are The Endless Abyss: A Busty Cop’s Corrupted Soul, The Queen's Conditioning in Captivity and Maid Sisters' Service — picked from the ranked list below. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.

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About Seductive Sister: 【Seductive Big Sister】 is a 3D interactive game, in the game, you play a newly released college student, your cousin took you to his house to play, in the his house, you met the sexy cousin's wife. And your sister gradually shows her hunger and thirst and has an unforgettable encounter with you 。。。

RPGCasualWindowsby 18cmSam, BananaKing
Seductive Sister — Steam game cover

Players who liked Seductive Sister also play

Steam players who put hours into Seductive Sister also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.

  1. The Endless Abyss: A Busty Cop’s Corrupted Soul

    WHY THIS

    Top pick for Seductive Sister fans by collaborative filtering across millions of Steam libraries. Shares RPG and Casual with Seductive Sister.

    A young policewoman, Wu Zixuan, is kidnapped to track down a criminal organisation. The player uses the threat of sexual violence to imprison and interrogate her in order to uncover secret information about the police.

    2026RPGCasual11.69 USDDeck PlayableSteam ↗
  2. The Queen's Conditioning in Captivity

    WHY THIS

    Second-strongest match for Seductive Sister fans by collaborative filtering across millions of Steam libraries. Shares RPG and Casual with Seductive Sister.

    【The Queen's Conditioning in Captivity】 is a full motion 3D game that tells the story of how a queen, imprisoned in a cellar, is humiliated and conditioned step by step to her ultimate degradation!

    2027RPGCasualSteam ↗
  3. Maid Sisters' Service

    WHY THIS

    Third-strongest match for Seductive Sister fans by collaborative filtering across millions of Steam libraries. Shares RPG and Casual with Seductive Sister.

    During a business trip, I lived with two newly recruited maid sisters—the considerate Kiyomi and the passionate Shizuki—for a month. Although I had lost my memory, my little thingy was still very energetic!

    2026RPGCasual9.99 USDDeck PlayableSteam ↗
  4. Redemption of the Cat Demon Girl

    WHY THIS

    Ranked #4 for Seductive Sister fans by collaborative filtering across millions of Steam libraries. Shares RPG and Casual with Seductive Sister.

    You meet the cat demon girl "Suzu" when you go to a merchant's "friend" and he forcibly gives you Suzu, whose origin is unknown, but as certain things progress, you'll gradually find that some people and things are in need of redemption, and the "redemption" of ...... is, in the end, who?

    2027RPGCasualSteam ↗
  5. Female Anchor Next Door

    WHY THIS

    Ranked #5 for Seductive Sister fans by collaborative filtering across millions of Steam libraries. Shares RPG and Casual with Seductive Sister.

    Have you ever longed for a glimmer of sexual fantasy in your boring working life...like, a porn streamer you followed unexpectedly barging into your life? Discovering the secret of a female athlete in the gym? The yandere behavior of your juniors in the workplace? Or even...a magical girl coming to me?

    2025RPGCasual14.99 USDDeck PlayableSteam ↗
  6. Lilim wants to Lv up♥

    WHY THIS

    Ranked #6 for Seductive Sister fans by collaborative filtering across millions of Steam libraries. Shares RPG and Casual with Seductive Sister.

    One night, a beautiful girl suddenly appeared in my room. She wasn’t just dressed in a revealing and sexy outfit, but she also had horns and a tail. Lilim, a self-proclaimed succubus, came to the human world in order to level up; my long-hoarded sexual desire was just the perfect target for her.

    2024RPGCasual9.99 USDDeck PlayableSteam ↗
  7. SEXOPHOBIA 🔞

    WHY THIS

    Ranked #7 for Seductive Sister fans by collaborative filtering across millions of Steam libraries. Shares Casual with Seductive Sister.

    A dating sim and card-based social strategy game where everyday life collides with the unknown. Build relationships, craft your deck, and uncover a hidden reality where every connection shapes your path—and your fate.

    2026SimulationCasual9.29 USDSteam ↗
  8. Travel through the adult game and build a harem

    WHY THIS

    Ranked #8 for Seductive Sister fans by collaborative filtering across millions of Steam libraries. Shares RPG and Casual with Seductive Sister.

    I was single for over 30 years and had masturbated to the point of kidney failure, then crossed over and even started a harem!With all these different kinds of beautiful women in front of me, the spirit is willing but the flesh is weak .... but can't be such a bully ah!

    2025RPGCasual9.99 USDSteam ↗

Free alternatives

Free-to-play games that recommended players of this title also tend to enjoy.

  1. Doki Doki Literature Club!

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Casual with Seductive Sister.

    The Literature Club is full of cute girls! Will you write the way into their heart? This game is not suitable for children or those who are easily disturbed.

    2017IndieFree To PlayCasualFreeDeck PlayableSteam ↗
  2. Helltaker

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    Helltaker is a short game about sharply dressed demon girls.

    2020IndieAdventureFree To PlayFreeDeck PlayableSteam ↗
  3. Bongo Cat

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    Bongo cat needs your help. Bongo cat needz more hatz!!! Every time you press a key, Bongo cat will punch your taskbar. Type, click, play, work to collect more points. Which hats will you find?

    2025IndieSimulationMassively MultiplayerFreeDeck PlayableSteam ↗
  4. Indigo Park: Chapter 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.

    2024ActionIndieAdventureFreeDeck PlayableSteam ↗
  5. Our Life: Beginnings & Always

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Casual with Seductive Sister.

    A twenty-dollar bill, four summers, fifteen years, and a one of a kind life. Create an experience that’s all your own in this near-fully customizable visual novel where you grow from childhood to adulthood with the lonely boy next door.

    2020IndieFree To PlayCasualFreeSteam ↗
  6. missed messages.

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Casual with Seductive Sister.

    ‘goth gf’s iPhone’ airdrops you - accept or decline? A love/horror story about life, death, & memes.

    2019IndieSimulationFree To PlayFreeDeck PlayableSteam ↗
  7. A Date with Death

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it.

    Fight against & romance the one hunting for your soul in A Date with Death, a romance chat simulator where you date(?) the Grim Reaper himself. Create your own character, decorate your apartment, and chat away with the charming yet dangerous Grim Reaper through text and video calls.

    2023IndieSimulationFree To PlayFreeDeck PlayableSteam ↗
  8. Virtual Cottage

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Casual with Seductive Sister.

    Virtual Cottage gives you a comfy place to rest and be productive without any distractions. Open the game, set yourself a goal and enjoy the atmosphere.

    2020IndieSimulationFree To PlayFreeDeck PlayableSteam ↗

More from 18cmSam

Other recommendable Steam games by 18cmSam, ranked by review count so the studio's hits land first.

  1. Female Anchor Next Door

    WHY THIS

    Another title from 18cmSam, the studio behind Seductive Sister. Shares RPG and Casual with Seductive Sister.

    Have you ever longed for a glimmer of sexual fantasy in your boring working life...like, a porn streamer you followed unexpectedly barging into your life? Discovering the secret of a female athlete in the gym? The yandere behavior of your juniors in the workplace? Or even...a magical girl coming to me?

    2025RPGCasual14.99 USDDeck PlayableSteam ↗
  2. Maid Sisters' Service

    WHY THIS

    Another title from 18cmSam, the studio behind Seductive Sister. Shares RPG and Casual with Seductive Sister.

    During a business trip, I lived with two newly recruited maid sisters—the considerate Kiyomi and the passionate Shizuki—for a month. Although I had lost my memory, my little thingy was still very energetic!

    2026RPGCasual9.99 USDDeck PlayableSteam ↗
  3. The Queen's Conditioning in Captivity

    WHY THIS

    Another title from 18cmSam, the studio behind Seductive Sister. Shares RPG and Casual with Seductive Sister.

    【The Queen's Conditioning in Captivity】 is a full motion 3D game that tells the story of how a queen, imprisoned in a cellar, is humiliated and conditioned step by step to her ultimate degradation!

    2027RPGCasualSteam ↗

Frequently asked about Seductive Sister

What games are most similar to Seductive Sister?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Seductive Sister are The Endless Abyss: A Busty Cop’s Corrupted Soul, The Queen's Conditioning in Captivity, Maid Sisters' Service.
Who developed Seductive Sister?
Seductive Sister was developed by 18cmSam, BananaKing and published by Playmeow, ACG creator, Playmeow News.

imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on Seductive Sister.

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