Nemurimouto

by pachipoi

Uncensored Windows Android
Versionv0.10
EngineUnity
Released2026-04-04
Updated2026-04-06
LanguageEnglish, Japanese

About Nemurimouto

Nemurimouto is an adult game made by pachipoi in Unity, presented as an animated 2DCG title with a male protagonist. You play as a brother whose university-age sister stays with him during summer break. She sleeps often, and the premise centers on using those moments for intimate fun. The current build contains eight intimate scenes and focuses on interactions, sprites, and CGs.

Development remains active, with version v0.10 released on April 4, 2026 for Windows and Android. It supports English and Japanese and is uncensored. The latest update adds a new intimate interaction after the second intimate event, changes how affectionate contact is introduced and repeated, and includes six new CGs tied to intimate and love events. It also replaces three earlier CGs with C.W. versions.

Developer's description

Your sister will be staying at your place for university summer break. She tends to sleep a lot, maybe you could take advantage of that and have some fun together! The game is still under heavy development, there are only 8 H-Scenes so far. I'll be adding more as the development continues, as well as more interactions, different game features, sprites, CGs, and more!​

Download Nemurimouto v0.10

Changelog

v0.10 - New interactive H-scene (unlocks after the second lewd event, simply press "Touch Chest" when interacting with Mayu)<br> - Kissing has a slightly new approach. She'll ask you to kiss her cheek once during a random chat, from there on, you'll be able to initiate kisses whenever. First on the cheek, and then on the mouth. Dialogue will progress depending on how close you are with Mayu<br> - A total of 6 new CGs: - Lewd event 5 - Lewd event 6 - Love event 4 - Replaced the last 3 CGs by C.W. v0.09 We've added 8 new CGs total. CGs for love event 1 and 2, as well as lewd event 1 were replaced. We'll be replacing the remaining SW's CGs in the next update. We've added lewd event 4, containing two brand new CGs. We've added an option to cook for Mayu, leading to the nip slip CG. After the 3rd love event, you'll have a new option available when interacting with Mayu, leading to an ear cleaning CG. And finally, I've adjusted the prologue a little, also adding a new CG. In addition, the kitchen H-scene was updated. I've redrawn parts, re-rigged, and reanimated quite a bit. Hopefully, things should look smoother now. You can also climax multiple times in this scene now. You can also completely undress Mayu now. The aspect ratio was changed to 16:9, but only the paizuri and kitchen scenes are drawn with horizontal aspect ratio in mind. I'll be updating other H-scenes as we keep developing the game, but a few of the scenes will probably remain in vertical format. Things may look a little rough on wider displays. I'll solve this issue in future updates. v0.08 •❣• New dialogue •❣• 3 new events (two lewd events and one wholesome) •❣• 3 new CGs •❣• 5 new backgrounds (drawn from scratch, replacing old royalty free ones) •❣• Bugfixes (most notably, you can now save in the web version) •❣• New H-Scene: You can now buy a lewd doujin. When you gift it to Mayu and have more than 500 lust/desire, she'll offer to read it together and then replicate a scene from it. In this scene you'll be able to: take off her arm covering her booba, touch the booba, initiate bobjob yourself, put it in her mouth or; giver her command to: initiate boobjob, boobjob + licking, boobjob + put it in her mouth. In addition, we've also done a lot of work in preparation for v0.09, but more on that later. v0.07 •❣• Implemented shop (very barebones, please don't expect much for this version) •❣• Three new original BGMs (by Colorgeist) •❣• New dialogue •❣• New sprite •❣• New Lust events (at 100 lust) •❣• New CG with a bunch of variation •❣• Fixed some bugs •❣• Added more bugs •❣• New H-Scene!: Every time you chat with Mayu, you'll get a bit of money (both shop and ways to gain currency will be worked on in future updates). You can buy Neko Bikini in the shop, gifting it to Mayu will trigger a new H-scene. Available actions: remove bikini top, remove bikini bottom, touch chest, touch butt, plap plap, finger. v0.06 •❣• Settings will now be saved •❣• Added a Hide Socials toggle in the settings •❣• Two new BGMs •❣• Added new dialogue •❣• Added a system where you can go outside with Mayu •❣• Added 2 new Love Events (at 100 and 200 Love stat) •❣• Added 2 new CG with a bunch of variation •❣• Fixed some bugs •❣• Added more bugs •❣• New H-Scene!: v0.05 ෆ Added new dialogue ෆ Added new voice lines ෆ Added save feature ෆ Added localization system (Translation: Pulse (JP), Quentin (FR), 太上月华静夜天尊 (CN), Lordscarpio (ES)) ෆ Added new BGM and SFX ෆ And countless bugfixes and smaller changes! New H-scene: ୨୧ Mayu will now occasionally go to the toilet ୨୧ You have an option to peek ୨୧ If you peek for too long, she'll catch you a tell you off ୨୧ If her lust is 20% or higher, she'll also masturbate in the toilet ୨୧ You have an option to walk in, scaring her off ୨୧ If her lust is 40% or higher, she won't get scared off and offer you to watch her ୨୧ In that scenario, you will have an option to lower her shirt and masturbate along with her v0.04 - Updated UI - Added a few more house assets - Added settings menu - The chat option will now show an "!" icon if the chat hasn't been finished before (thought even in completed chats you may notice that Mayu's behavior might change a little depending on stats) - Added a little more dialogue - Added a small interaction after Mayu taking a bath (you may notice that she's a little vulnerable if her lust stat is high). - Added voice acting! Hazuki Mana did a wonderful job giving Mayu a beautiful voice. I plan on adding more voice acting in special events, and maybe even getting the game 100% voiced if the support continues the way it has been lately~ - H-scene 04! You can touch her thigh, lift her shirt, lift her skirt, pull her panties down, lift her legs up, finger her, have vaginal and oral sex with her v0.03 N/A v0.02 N/A v0.01 Initial Release

Player reviews

Player rating 5.0 / 5 · 18 ratings
Written reviews 18 · avg 4.5★
Positive (4–5★) 83%
Latest review 2026-04-07

What players say

Mostly positive early-access game praised for art, though some find it shallow and repetitive.

5★ 12
4★ 3
3★ 3
2★ 0
1★ 0

Players like

  • High-quality 2D art and CG scenes
  • Cute, funny dialogue and character writing
  • Smooth, well-animated scenes
  • Simple, accessible gameplay loop

Common complaints

  • Barebones story and lack of meaningful gameplay
  • Exaggerated or unnatural character animations
  • Scenes reset after climax, breaking interaction flow

Best for players who enjoy early-access visual novels with strong art and lighthearted sibling themes.

Summarised from 18 written player reviews.

yodyna 2026-04-07 ★★★★★
3/5 Meh, a bit overrated when reading reviews. I like games of this type and i know this one isn't finished yet but i can already tell it didn't hit me. - art is nice but from screens i thought…
ilikebabataia 2025-10-15 ★★★★★
Keep in mind please I am very, very critical of artstyle and the quality of art when reviewing games. It is the factor that weighs the most in the review. The art of this game is great, stunning even. Worth…
The_Racc 2025-09-06 ★★★★★
A delightful if not simple game- As the description may imply, you are being volunteered/told to keep your sister for a while. Why? Who cares! Apparently she's narcoleptic or something? That part is never super explained well, but she sleeps…

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