IMHO.

Games like Onii-Chan

If Onii-Chan is your kind of game, the closest matches are Nurse Love Addiction, Gaokao.Love.100Days and Violet rE:-The Final reExistence- — picked from the ranked list below. Reviewers single out its bleak, contemplative and dark. 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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2018Windowsby voksolril
Onii-Chan — Steam game cover
Players highlight
Censorship patch controversy adds intrigueRepetitive daily loops feel hypnoticShort story with unsettling sibling dynamicsBleakContemplativeDark

Players who liked Onii-Chan also play

Steam players who put hours into Onii-Chan 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. Nurse Love Addiction

    WHY THIS

    Shares a dark mood with Onii-Chan.

    Top pick for Onii-Chan fans by collaborative filtering across millions of Steam libraries.

    Follow Asuka Osachi, a ditzy girl training to become a nurse at Teito Nursing School. Experience her story with her classmates as they discover love, medicine, and adulthood.

    2016AdventureSimulation7.99 USDDeck PlayableSteam ↗
  2. Gaokao.Love.100Days

    WHY THIS

    Shares a contemplative mood with Onii-Chan.

    Second-strongest match for Onii-Chan fans by collaborative filtering across millions of Steam libraries.

    Getting a girl-friend before National College Entrance Exam, I know it's crazy, but from today, we will face everything together.

    2015IndieAdventureSimulation5.69 USDDeck PlayableSteam ↗
  3. Violet rE:-The Final reExistence-

    WHY THIS

    Shares achievement hunting and a contemplative mood with Onii-Chan.

    Third-strongest match for Onii-Chan fans by collaborative filtering across millions of Steam libraries.

    毫无意义的永生,轮回尽头的重逢,当生命不再是约束灵魂的容器时,请告诉我: 什么才是『永恒』。

    2019IndieSimulationCasual3.99 USDSteam ↗
  4. Hush Hush - Only Your Love Can Save Them

    WHY THIS

    Ranked #4 for Onii-Chan fans by collaborative filtering across millions of Steam libraries.

    A Visual Novel with a twist - improve skills, charm girls, and learn dangerous secrets... by any means necessary.

    2023StrategyIndieSimulation19.99 USDDeck VerifiedSteam ↗
  5. Sakura Swim Club

    WHY THIS

    Ranked #5 for Onii-Chan fans by collaborative filtering across millions of Steam libraries.

    In Sakura Swim Club, follow the story of Kaede, just your average guy. Upon transferring to a new school, he meets two beautiful girls in the swim club. Things haven't gone well for the swim club lately, but with Kaede's help, that all changes.

    2015IndieCasual4.99 USDDeck VerifiedSteam ↗
  6. Sakura Beach

    WHY THIS

    Ranked #6 for Onii-Chan fans by collaborative filtering across millions of Steam libraries.

    From the makers of Sakura Spirit, Sakura Angels and Sakura Fantasy this time working together with the artist Inma to bring you this visual novel dating sim on the beach! Seiji is a daydreamer who spends too much time thinking about space.

    2015IndieSimulation2.49 USDDeck VerifiedSteam ↗
  7. Corona Blossom Vol.2 The Truth From Beyond

    WHY THIS

    Shares kinetic novel with Onii-Chan.

    Ranked #7 for Onii-Chan fans by collaborative filtering across millions of Steam libraries.

    Breaking news! Space pirate-turned-maid Lily and her cohort Yunie have a nefarious plan to kidnap R-ne and sell her as raw materials! Can Keiji and our other heroes save the day, or is R-ne destined to be melted into scrap? And is there an even greater threat looming in the background?

    2016AdventureCasual4.49 USDSteam ↗
  8. The Fruit of Grisaia

    WHY THIS

    Shares a dark mood with Onii-Chan.

    Ranked #8 for Onii-Chan fans by collaborative filtering across millions of Steam libraries.

    SIX FRUITS BARE THEIR FANGS AT THE WORLD. --The academy was their orchard. In this place of learning, protected by high walls from the outside world, there arrived a single young man who'd lost his purpose in life. He'd lost sight of what he wanted to protect.

    2015AdventureCasual19.99 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.

    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. The Murder of Sonic the Hedgehog

    WHY THIS

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

    Sonic the Hedgehog...was murdered!? Get to the bottom of the mystery in this brand-new adventure!

    2023IndieSimulationFree To PlayFreeDeck PlayableSteam ↗
  5. 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 ↗
  6. Sheepy: A Short Adventure

    WHY THIS

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

    A Short Handcrafted Pixel Art Platformer that follows Sheepy, an abandoned plushy brought to life. Sheepy: A Short Adventure is the first short game from MrSuicideSheep.

    2024IndieAdventureFree To PlayFreeDeck PlayableSteam ↗
  7. Our Life: Beginnings & Always

    WHY THIS

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

    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 ↗
  8. missed messages.

    WHY THIS

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

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

    2019IndieSimulationFree To PlayFreeDeck PlayableSteam ↗

Plays great on Steam Deck

Valve-Verified or Playable picks from the similar pool — ready to go on Deck out of the box.

  1. Hush Hush - Only Your Love Can Save Them

    WHY THIS

    Deck Verified — runs on Steam Deck out of the box.

    A Visual Novel with a twist - improve skills, charm girls, and learn dangerous secrets... by any means necessary.

    2023StrategyIndieSimulation19.99 USDDeck VerifiedSteam ↗
  2. Sakura Swim Club

    WHY THIS

    Deck Verified — runs on Steam Deck out of the box.

    In Sakura Swim Club, follow the story of Kaede, just your average guy. Upon transferring to a new school, he meets two beautiful girls in the swim club. Things haven't gone well for the swim club lately, but with Kaede's help, that all changes.

    2015IndieCasual4.99 USDDeck VerifiedSteam ↗
  3. Sakura Beach

    WHY THIS

    Deck Verified — runs on Steam Deck out of the box.

    From the makers of Sakura Spirit, Sakura Angels and Sakura Fantasy this time working together with the artist Inma to bring you this visual novel dating sim on the beach! Seiji is a daydreamer who spends too much time thinking about space.

    2015IndieSimulation2.49 USDDeck VerifiedSteam ↗

Frequently asked about Onii-Chan

What games are most similar to Onii-Chan?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Onii-Chan are Nurse Love Addiction, Gaokao.Love.100Days, Violet rE:-The Final reExistence-.
Who developed Onii-Chan?
Onii-Chan was developed by voksolril.

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 Onii-Chan.

For library-aware picks tuned to your specific taste, sign in with Steam on the home page.