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What relationship is your favourite so far in the story?

  • Twincest. Nothing more beautiful and pure than incestuous sibling love.

  • Lescest. Nothing more hot than a strong mommy dominating her petite teen daughter.

  • Mama's boy. Nothing better than pampering your little boy toy.


Results are only viewable after voting.

Ruykiru

Developing: Sinful Summer
Game Developer
May 2, 2017
1,091
8,020
758
I mean change it to my name like most games do, not sure what the taxi driver has to do with it.
This is a kinetic novel without choices, like a book basically or any other story that is not a role-playing videogame. I did have the option very early back then, but I realised renaming the characters adds nothing in this format but a headache when I want to use all caps for the names or a nickname for Lyna. There's always mods out there like URM if you still wish to do so but I won't add it officially.
 

drh64

Member
Oct 6, 2018
280
322
257
This is a kinetic novel without choices, like a book basically or any other story that is not a role-playing videogame. I did have the option very early back then, but I realised renaming the characters adds nothing in this format but a headache when I want to use all caps for the names or a nickname for Lyna. There's always mods out there like URM if you still wish to do so but I won't add it officially.
Ok thanks for the explanation.
 

Ruykiru

Developing: Sinful Summer
Game Developer
May 2, 2017
1,091
8,020
758
IMPORTANT ANNOUNCEMENT Summer 2025


TLDR: There's no "too long didn't read" for this long post sorry. Either you read this or not, if you care about Sinful Summer. There's also a fun Lyna photoshoot at the end :p

Hello I'm Raul, also know as Ruykiru, and I must be one of the most retarded guys alive because I hate earning money. Ever since I've started getting like 2.5-3k dollars whenever I release an update (which honestly I don't mind cause I work on them a lot), I've been getting this nagging feeling of uncertainty, of carrying a burden. That's what a job is duh, but I'm my own boss in this situation so that fact makes the periods when I don't release something and still getting paid feel like shit because I don't ever want to become a conman.

This June I did the writing for 3.3, and lots of "housekeeping" by cleaning up my software, buying new clothes mods, custom made animations and all that boring stuff that I then use for the 3D program I use for the horny renders. However, I didn't make a single chapter 3.3 image and I feel like shit because unlike other times, I didn't enable vacation mode and still got like 1.5-2k dollars this month. There's nothing more than I hate that developers (and content creators in general) that milk the shit out of their audience because they have a popular niche.

I hate this feeling of responsibility of having to deliver, because weirdly so, when I was earning less than 1k$ even on update release months, I felt I had more enthusiasm for what I as doing and I was even more productive in fact. I used to do monthly updates and now it's less that and more like 5-8 weeks, but to be fair the quality of the first chapter of Sinful Summer is garbage now in my opinion compared to recent ones as I got better. Anyway, the truth is that I don't particularly enjoy how this has become more a job and way less a hobby now.
---------------------------
FAQ:
1. What the fuck are you rambling on about you silly goose? Get to the point.
- This means I'm enabling vacation mode again in my SubscribeStar until I feel like it and that means you won't get charged money until I decide (unless you sub for the 1st time). If you are a paid sub on Unifans please move to the free tier in the meantime. You can do the same in Substar if you don't trust me or the spaguetti code held by tape that powers its features like vacation mode.

2. Are you stupid? Don't you need money to live?
-
I'm in a lucky position and I'm mostly okay, but I still live with my parents because we young people in early twenties have no fucking future in this world unless some magic AI technology escapes the lab and gives the world abundance and destroys the shitty status quo where only the super rich get richer forever with no limit. But for my situation in particular, we're not rich, but I don't need much money now and most of what I earn goes to stocks or crypto for the future to prevent against inflation. I actually wish I was a billionaire to give 99% of it all to people who actually fucking need it right now.
So anyway, this summer I won't be earning money while I'm being lazy, or on the contrary while I work 10 hours a day on Sinful for some random ass week in August when I get a massive surge of motivation... and hornyness too. I'll obviously enable payments again whenever I release a new update. I'm retarded y es, but not that much to do this totally for free forever.

3. Okay you've shown us you are human, still have some emotions, and also a toxic ego like the rest of us. Now when is the next update dude? I wanna fap to unhinged sissy Lyna and dommy mommy Helga.
-
Me too, brother. Me too. Luckily I can boot up the program at any time and pose them in some juicy outfits and poses and have a nice afternoon for myself because I'm a big perv like the rest of you, and because I mainly started doing this because the taboo of incest turns me on so fucking much when it's well done. All to say that, no, you will have those too eventually. I'm not abandoning anything, I'm just gonna make what's left of Sinful Summer at my pace while I deal with the rest of my existential crises on a daily basis.
---------------------------
Now if you excuse me I'm gonna have a chill summer of 2025 by the pool of my community apartment complex (or whatever the fuck is called when there's a bunch of buildings and they share a pool) because it's hot as hell here in Spain and it will only get worse. I might post something in the meantime here, in discord or in the forums but don't expect much activity. The girls will be waiting for me, and for you pervs too...

And by the way, if you feel like making fun of me or being angry at me because all of this, feel free to do so in all the places I'm active. I appreciate it and I probably deserve the memes.

Why is she not real...
You don't have permission to view the spoiler content. Log in or register now.
HS2_2025-06-19-18-06-10-560.jpg
 
Last edited:
Apr 18, 2025
60
153
42
Well I'm sad. I'll spend more time working on Spanish. Currently reading Don Quixote in Spanish. Hilarious.

I'm in a lucky position and I'm mostly okay, but I still live with my parents because we young people in early twenties have no fucking future in this world unless some magic AI technology escapes the lab and gives the world abundance and destroys the shitty status quo where only the super rich get richer forever with no limit.
I hear that! for a different kind of porn (conspiracy porn) watch this excellent documentary about how the Bank of Japan hosed Japanese people.

 
Last edited:

Gabo69780

Newbie
Jul 3, 2021
84
233
157
IMPORTANT ANNOUNCEMENT Summer 2025


TLDR: There's no "too long didn't read" for this long post sorry. Either you read this or not, if you care about Sinful Summer. There's also a fun Lyna photoshoot at the end :p

Hello I'm Raul, also know as Ruykiru, and I must be one of the most retarded guys alive because I hate earning money. Ever since I've started getting like 2.5-3k dollars whenever I release an update (which honestly I don't mind cause I work on them a lot), I've been getting this nagging feeling of uncertainty, of carrying a burden. That's what a job is duh, but I'm my own boss in this situation so that fact makes the periods when I don't release something and still getting paid feel like shit because I don't ever want to become a conman.

This June I did the writing for 3.3, and lots of "housekeeping" by cleaning up my software, buying new clothes mods, custom made animations and all that boring stuff that I then use for the 3D program I use for the horny renders. However, I didn't make a single chapter 3.3 image and I feel like shit because unlike other times, I didn't enable vacation mode and still got like 1.5-2k dollars this month. There's nothing more than I hate that developers (and content creators in general) that milk the shit out of their audience because they have a popular niche.

I hate this feeling of responsibility of having to deliver, because weirdly so, when I was earning less than 1k$ even on update release months, I felt I had more enthusiasm for what I as doing and I was even more productive in fact. I used to do monthly updates and now it's less that and more like 5-8 weeks, but to be fair the quality of the first chapter of Sinful Summer is garbage now in my opinion compared to recent ones as I got better. Anyway, the truth is that I don't particularly enjoy how this has become more a job and way less a hobby now.
---------------------------
FAQ:
1. What the fuck are you rambling on about you silly goose? Get to the point.
- This means I'm enabling vacation mode again in my SubscribeStar until I feel like it and that means you won't get charged money until I decide (unless you sub for the 1st time). If you are a paid sub on Unifans please move to the free tier in the meantime. You can do the same in Substar if you don't trust me or the spaguetti code held by tape that powers its features like vacation mode.

2. Are you stupid? Don't you need money to live?
-
I'm in a lucky position and I'm mostly okay, but I still live with my parents because we young people in early twenties have no fucking future in this world unless some magic AI technology escapes the lab and gives the world abundance and destroys the shitty status quo where only the super rich get richer forever with no limit. But for my situation in particular, we're not rich, but I don't need much money now and most of what I earn goes to stocks or crypto for the future to prevent against inflation. I actually wish I was a billionaire to give 99% of it all to people who actually fucking need it right now.
So anyway, this summer I won't be earning money while I'm being lazy, or on the contrary while I work 10 hours a day on Sinful for some random ass week in August when I get a massive surge of motivation... and hornyness too. I'll obviously enable payments again whenever I release a new update. I'm retarded y es, but not that much to do this totally for free forever.

3. Okay you've shown us you are human, still have some emotions, and also a toxic ego like the rest of us. Now when is the next update dude? I wanna fap to unhinged sissy Lyna and dommy mommy Helga.
-
Me too, brother. Me too. Luckily I can boot up the program at any time and pose them in some juicy outfits and poses and have a nice afternoon for myself because I'm a big perv like the rest of you, and because I mainly started doing this because the taboo of incest turns me on so fucking much when it's well done. All to say that, no, you will have those too eventually. I'm not abandoning anything, I'm just gonna make what's left of Sinful Summer at my pace while I deal with the rest of my existential crises on a daily basis.
---------------------------
Now if you excuse me I'm gonna have a chill summer of 2025 by the pool of my community apartment complex (or whatever the fuck is called when there's a bunch of buildings and they share a pool) because it's hot as hell here in Spain and it will only get worse. I might post something in the meantime here, in discord or in the forums but don't expect much activity. The girls will be waiting for me, and for you pervs too...

And by the way, if you feel like making fun of me or being angry at me because all of this, feel free to do so in all the places I'm active. I appreciate it and I probably deserve the memes.

Why is she not real...
You don't have permission to view the spoiler content. Log in or register now.
View attachment 5000226
Have a good holiday and enjoy yourself
 

Filipis

Engaged Member
Nov 15, 2022
2,350
4,225
386
IMPORTANT ANNOUNCEMENT Summer 2025


TLDR: There's no "too long didn't read" for this long post sorry. Either you read this or not, if you care about Sinful Summer. There's also a fun Lyna photoshoot at the end :p

Hello I'm Raul, also know as Ruykiru, and I must be one of the most retarded guys alive because I hate earning money. Ever since I've started getting like 2.5-3k dollars whenever I release an update (which honestly I don't mind cause I work on them a lot), I've been getting this nagging feeling of uncertainty, of carrying a burden. That's what a job is duh, but I'm my own boss in this situation so that fact makes the periods when I don't release something and still getting paid feel like shit because I don't ever want to become a conman.

This June I did the writing for 3.3, and lots of "housekeeping" by cleaning up my software, buying new clothes mods, custom made animations and all that boring stuff that I then use for the 3D program I use for the horny renders. However, I didn't make a single chapter 3.3 image and I feel like shit because unlike other times, I didn't enable vacation mode and still got like 1.5-2k dollars this month. There's nothing more than I hate that developers (and content creators in general) that milk the shit out of their audience because they have a popular niche.

I hate this feeling of responsibility of having to deliver, because weirdly so, when I was earning less than 1k$ even on update release months, I felt I had more enthusiasm for what I as doing and I was even more productive in fact. I used to do monthly updates and now it's less that and more like 5-8 weeks, but to be fair the quality of the first chapter of Sinful Summer is garbage now in my opinion compared to recent ones as I got better. Anyway, the truth is that I don't particularly enjoy how this has become more a job and way less a hobby now.
---------------------------
FAQ:
1. What the fuck are you rambling on about you silly goose? Get to the point.
- This means I'm enabling vacation mode again in my SubscribeStar until I feel like it and that means you won't get charged money until I decide (unless you sub for the 1st time). If you are a paid sub on Unifans please move to the free tier in the meantime. You can do the same in Substar if you don't trust me or the spaguetti code held by tape that powers its features like vacation mode.

2. Are you stupid? Don't you need money to live?
-
I'm in a lucky position and I'm mostly okay, but I still live with my parents because we young people in early twenties have no fucking future in this world unless some magic AI technology escapes the lab and gives the world abundance and destroys the shitty status quo where only the super rich get richer forever with no limit. But for my situation in particular, we're not rich, but I don't need much money now and most of what I earn goes to stocks or crypto for the future to prevent against inflation. I actually wish I was a billionaire to give 99% of it all to people who actually fucking need it right now.
So anyway, this summer I won't be earning money while I'm being lazy, or on the contrary while I work 10 hours a day on Sinful for some random ass week in August when I get a massive surge of motivation... and hornyness too. I'll obviously enable payments again whenever I release a new update. I'm retarded y es, but not that much to do this totally for free forever.

3. Okay you've shown us you are human, still have some emotions, and also a toxic ego like the rest of us. Now when is the next update dude? I wanna fap to unhinged sissy Lyna and dommy mommy Helga.
-
Me too, brother. Me too. Luckily I can boot up the program at any time and pose them in some juicy outfits and poses and have a nice afternoon for myself because I'm a big perv like the rest of you, and because I mainly started doing this because the taboo of incest turns me on so fucking much when it's well done. All to say that, no, you will have those too eventually. I'm not abandoning anything, I'm just gonna make what's left of Sinful Summer at my pace while I deal with the rest of my existential crises on a daily basis.
---------------------------
Now if you excuse me I'm gonna have a chill summer of 2025 by the pool of my community apartment complex (or whatever the fuck is called when there's a bunch of buildings and they share a pool) because it's hot as hell here in Spain and it will only get worse. I might post something in the meantime here, in discord or in the forums but don't expect much activity. The girls will be waiting for me, and for you pervs too...

And by the way, if you feel like making fun of me or being angry at me because all of this, feel free to do so in all the places I'm active. I appreciate it and I probably deserve the memes.

Why is she not real...
You don't have permission to view the spoiler content. Log in or register now.
View attachment 5000226
Dang, here I was, excited to finish my first playthrough of the game. I’m not done yet, but now I’m bummed AF.
 

Darreau91

Formerly 'DarreuRR'
Dec 31, 2022
259
1,018
266
:pGod, this milf is a goddess! View attachment 5010805

With each slow playthrough, the story gets better and better, and how each character slowly reveals their potential, whether it's Erik, Lina, or Helga, each in their own way is the best
Here’s to hoping we get some more Helga action after Ruy’s break. Someone needs to humble Erik and cure his premature ejaculation.:sneaky:
 

MAGO-DAG

Forum Fanatic
Sep 1, 2023
5,826
25,960
821
Here’s to hoping we get some more Helga action after Ruy’s break. Someone needs to humble Erik and cure his premature ejaculation.:sneaky:
Yeah! You know I also came to terms with Erik's shy side, I think he's even better like that. I like how Ruy shows his character and his chemistry between the two beauties, each time he becomes an adult but in a good way.

Lina has said many times that he is the guy who knows how to find the right words and consolation, Many may disagree with this but it conveys the depth of experience associated with taboos

And of course Helga is a hot milf and that's not up for discussion. :devilish:
 

vanthanhkhuong

New Member
Apr 19, 2023
4
6
81
View attachment 4157619

Overview:
Embark on an unforgettable journey with Erik and Lyna, two young twins entangled in a passionate web of desires. Set against the breathtaking backdrop of a private tropical island villa, their reunion after a year abroad sparks a fiery exploration of emotions that defy traditional boundaries.

As they tread the line between repressed feelings and mutual attraction, their bond deepens and the craving for the forbidden becomes impossible to ignore. With the arrival of their mother Helga on the horizon, will they succumb to temptation or resist the call of their primal urges? Discover the twists and turns of this compelling narrative through a kinetic visual novel where love, family, and desire intertwine in very interesting ways...

DISCLAIMER: Read the dev notes before spreading hate please. This is NOT your usual incest visual novel about a mindless poorly-written harem. It has a heavy focus on the taboo itself and making the family relationships actually matter and mean something more than just a label. Also sounds effects and music (custom sountrack!) are essential here to enhance both the story and the sex scenes.
Thread Updated: 2025-06-21
Release Date: 2025-05-31
Developer: Ruykiru - - - -
Censored: No
Version: Chapter 3.2
OS: Windows, Linux, Mac, Android
Language: English
Genre:
You don't have permission to view the spoiler content. Log in or register now.

Installation:
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Changelog:
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Developer Notes:
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DOWNLOAD
Super HD (1440p)
Win/Linux (Ch. 3.1): - MEGA - - PIXELDRAIN -
Mac (Ch. 3.1): - MEGA - - PIXELDRAIN -

Regular (1080p)
Win/Linux (Ch. 3.2)
: - - MEGA - -
Mac (Ch. 3.2): - - MEGA - -
Android (Ch. 3.2): - - MEGA - - WORKUPLOAD


Extra: Compressed

View attachment 4907868 View attachment 4907869 View attachment 4907870 View attachment 4932355 View attachment 4907872 View attachment 4932356 View attachment 4907874 View attachment 4907875 View attachment 4910601 View attachment 4932357 View attachment 4910603 View attachment 4910604 View attachment 4910605 View attachment 4910606 View attachment 4910607 View attachment 4910608 View attachment 4910609 View attachment 4910610 View attachment 4910611 View attachment 4910612 View attachment 4910613 View attachment 4910614 View attachment 4910615 View attachment 4910616 View attachment 4910617 View attachment 4910618 View attachment 4910619
View attachment 4157619

Overview:
Embark on an unforgettable journey with Erik and Lyna, two young twins entangled in a passionate web of desires. Set against the breathtaking backdrop of a private tropical island villa, their reunion after a year abroad sparks a fiery exploration of emotions that defy traditional boundaries.

As they tread the line between repressed feelings and mutual attraction, their bond deepens and the craving for the forbidden becomes impossible to ignore. With the arrival of their mother Helga on the horizon, will they succumb to temptation or resist the call of their primal urges? Discover the twists and turns of this compelling narrative through a kinetic visual novel where love, family, and desire intertwine in very interesting ways...

DISCLAIMER: Read the dev notes before spreading hate please. This is NOT your usual incest visual novel about a mindless poorly-written harem. It has a heavy focus on the taboo itself and making the family relationships actually matter and mean something more than just a label. Also sounds effects and music (custom sountrack!) are essential here to enhance both the story and the sex scenes.
Thread Updated: 2025-06-21
Release Date: 2025-05-31
Developer: Ruykiru - - - -
Censored: No
Version: Chapter 3.2
OS: Windows, Linux, Mac, Android
Language: English
Genre:
You don't have permission to view the spoiler content. Log in or register now.

Installation:
You don't have permission to view the spoiler content. Log in or register now.

Changelog:
You don't have permission to view the spoiler content. Log in or register now.

Developer Notes:
You don't have permission to view the spoiler content. Log in or register now.

DOWNLOAD
Super HD (1440p)
Win/Linux (Ch. 3.1): - MEGA - - PIXELDRAIN -
Mac (Ch. 3.1): - MEGA - - PIXELDRAIN -

Regular (1080p)
Win/Linux (Ch. 3.2)
: - - MEGA - -
Mac (Ch. 3.2): - - MEGA - -
Android (Ch. 3.2): - - MEGA - - WORKUPLOAD


Extra: Compressed

View attachment 4907868 View attachment 4907869 View attachment 4907870 View attachment 4932355 View attachment 4907872 View attachment 4932356 View attachment 4907874 View attachment 4907875 View attachment 4910601 View attachment 4932357 View attachment 4910603 View attachment 4910604 View attachment 4910605 View attachment 4910606 View attachment 4910607 View attachment 4910608 View attachment 4910609 View attachment 4910610 View attachment 4910611 View attachment 4910612 View attachment 4910613 View attachment 4910614 View attachment 4910615 View attachment 4910616 View attachment 4910617 View attachment 4910618 View attachment 4910619
I'm obsessed with this game so much, so fk good
 
  • Heart
Reactions: Ruykiru

estrada777

Forum Fanatic
Modder
Donor
Mar 22, 2020
4,880
11,572
698
Updated Android port. Nothing too fancy but let me know if you have any issues.

Version: 3.2

Appreciate my porting? Leave a Tip! You're supporting my efforts, paying for storage, and encouraging more ports!
¯\_(ツ)_/¯ OR

You don't have permission to view the spoiler content. Log in or register now.

This unofficial port/version is not released by the developer, download at your own risk.

PLEASE don't reply, or @ me, or DM me for updates. I always update my ports, YES I ALREADY KNOW ABOUT THE UPDATE.
If you ping me for updates, I will mark you account as ignored.



MEGA

Size 689 MB

Updates are faster on .

Game Developers: Want to talk about an official Android version for your game? Come join my Discord.
Updated.
 

Jin-Woo'

Member
Dec 3, 2021
367
575
236
No. Helga will never shave her milfy bush :whistle:
Never Shave a bush of a MILF that's a crime...but Helga's is not a bush it's a jungle can be a trim a bit... can't even see her lips down there she's gonna have lot of action in downtown in future and have some visitors now(didn't had anyone cause of divorce)so a trim is NEEDED i remember lyna also complaind about while tongue dancing down there jungle is soo much she can't enjoy it... ;) (y)
 
4.60 star(s) 137 Votes