The Sin Within [v0.5.1] [CigarRex]

April 8, 2026F95

Overview:
THE SIN WITHIN is the story of a boy exploring his mundane world under a new light…
Join Nick Harada, the kind student from the suburbs, in his journey to uncover the true pleasures of Lust, being led by an unlikely fate with the supernatural!
Free the desires of ALL the women he knows, and the world will become a better place! (maybe?)

Posessed by the Deadly Sin of Lust, Nick will have to find his footing as a Devil, navigating through his new ‘options’ while he searches for the other 6 Deadly Sins! ~~(He will have sex, if you didn’t catch it!!!!!)~~

Thread Updated: 2026-04-08

Release Date: 2026-04-01

Developer: CigarRex – SubscribeStar – X/Twitter – itch.io (RIP)

Censored: No

Version: 0.5.1

OS: Windows, Linux, Mac

Language: English

Genre:

3DCG, Animated, Male Protagonist, Ahegao, Corruption, Drugs, Exhibitionism, Group Sex, Groping, Handjob, Harem, Incest, Lactation, Lesbian, Male Domination, Masturbation, Milf, Oral Sex, Prostitution, Sexual Harassment, Spanking, Stripping, Teasing, Transformation, Adventure, Cosplay, Dating Sim, Graphic Violence, Humor, Paranormal, Point & Click, Possession, Romance, Sandbox, School Setting, Pregnancy, Voyeurism

*there won’t be any Sharing, NTR, or anything to that likeness! (with other men, of course).

Installation:

1. Extract and run.

Changelog:

v0.5.1 (2026-04-08):

Gardening Duty I !

Gardening Duty

+ 2.270 new renders (with +282 animations!!)

+ 4.000 lines of dialogue!

+ 23 NEW, INCREDIBLY SPICY SCENES!!

+ BRING MS. CLAIRE TO LUST LVL 2 – THE FIRST OF MANY!
+ Invite many other girls to your questionable photoshoot sessions at School…

+ 1 New Location: Ms. Claire’s Apartment!

+ 1 New Location: The Park! (but there’s nothing there yet… Soon TM)

+ Overhauled the Notes App: Now features an extensive Quest tab, guiding you through whatever storylines require a bit more attention step-by-step.

+ Overhauled the Gallery App: Each Gallery section now features a progress bar and a scene counter.

+ Overhauled the Help App: Now contains several topics neatly organized to help you out.

I told you, it would get prettier one day!

+ Added Keybinds! Check the Help App for the full list. These will make your life much easier!

+ Fixed some eldritch bugs and embarrassing typos.

Totalling…
~ 20.000 renders
~ 46.000 lines of dialogue

v0.5.0 (2025-08-08):
Back to School!

Brick-By-Brick

+ 3.375 new renders (with +142 animations!!)

+ 8.000 lines of dialogue!

+ 74 NEW SCENES!! (plus countless other smaller interactions…)

+ 3 new characters!

(Katherine, Beth, Nico)

+ 1 new SUPER-LOCATION: The School!

The School is divided into 6 new locations, 30 rooms total!

+ 11 brand-new events!

+ Implemented the Favor System – Warm yourself up to hard-headed girls first!

+ Implemented the Instance System – Allows for characters to be in different locations depending on your current Instance.

+ Added checkmarks to all interactions in-game, indicating the scene’s completion status.

+ Added checkmarks to indicate if a scene skips time.

+ Added a button to skip the time in the Contacts App.

+ Added a short questline that unlocks Teleporting to characters from the Contacts App.

+ Fixed some eldritch bugs

Totalling…
~ 18.500 renders
~ 42.000 lines of dialogue

v0.4.5 (2025-01-09):
THE RESORT EPISODE

The Family Circle: Part II

+ 4.425 new renders (with +158 animations!!)

+ 9.000 lines of dialogue!

+ 44 new scenes! (5 EXTRA SCENES, 12 SURPRISE SCENES…!)

+ 5 new characters! (4 being subscriber requests!)
(Lotte, Akari, Gwen, Cordelia Rivas, Sera!)

+ 1 new location (The Sunset Resort!)
+ 1 major event: Bring your family to the Resort!

+ Compressed video file-sizes by a lot! (this release is lighter than 0.4!)

+ Added a search bar to the Contacts App!

+ Added minor characters to a new section of the Contacts App!

+ Added a system to locate each character in-game from the Contacts App!

+ You can now see who’s in a location from the Map!

+ You can now preview who’s in a room when there are multiple characters around.

+ You can now see when an event is taking place somewhere from the Map.

+ Prepared some systems to be implemented in the next update – 0.5.0!

Totalling…
~ 15.000 renders
~ 34.000 lines of dialogue

v0.4 (2024-03-15):
TREASURES & MAPS

+ 3.300 new renders (with +272 animations!!)

+ 500 new sprites!

+ 7.800 lines of dialogue!

+ ~50 new scenes!

+ added map system
+ 3 new locations (LoveZone, Mall, Coffee Shop)

+ 2 new characters (Tina and ???)

+ Reach LVL 100 with Chloe, Karla, Michelle, Alice and Tina !
+ improved audio system
+ reworked notifications & improved UI
+ 2 new ways
of making money!

+ and a secret way of becoming a millionaire…

Totalling…
~ 10.500 renders
~ 25.000 lines of dialogue

PLUS:
+ 3 Extra Scenes,
requested by subs!

v0.3 (2023-07-20):
THE FAMILY CIRCLE – PART 1

+ 2.300 new renders (with +200 animations)

+ 540 new sprites

+ 6.200 lines of dialogue

+ ~40 new scenes

Totalling…

~ 7.200 renders

~ 17.200 lines of dialogue

PLUS:
+ 2 Extra Scenes, requested by subs!

You can access these by doing Greed’s little quest.

Don’t forget to be very diligent!

v0.2.1 (2023-04-15):
SECOND HALF OF THE PROLOGUE!

+2.700 images & animations

+6.150 lines of dialogue

+14 kinetic scenes

Totalling…
4.900 images & animations!!

11.000 lines of dialogue!!

PLUS:

+ Early Preview for the SANDBOX

+ Added Replay Gallery (GALLERY)

+ Added Character Details (CONTACTS)

+ Added Event Tracker (MY NOTES)

+ Added ‘Unlock Gallery Entries’ Cheat (SPECIALS)

PLUS!!

+ Everything added in the previous hot-fix (0.1.1)

v0.1.1 (2023-04-08):

Hot-fix addressing a few things:

+ Added a slider in the settings that lets you control the intensity of Screen Shakes

+ Added the option to skip certain scenes

+ Rewrote a few segments to better contextualize character’s motives

+ Replaced nearly every song, sound effect and font used in the game (I had to)

+ Included subscribers (as of April 8th) in the credits section.

v0.1 (2023-04-01):

Release of the game – FIRST HALF OF THE PROLOGUE!

+2.200 images & animations

+5.500 lines of dialogue

+18 NEW kinetic scenes

Developer Notes:

Hello. Thanks for coming by, I hope you enjoy my game! (I sure did, it’s my first one ever!)

Your feedback is worth gold! Be sure to tell me what you thought & review it, please!!

And check my SS Account if you want to support me! I’ll be posting more goodies regularly!

Signatures:

3487630 TheSinsWithin1 | Free Adult Games

3487631 TheSinsWithin2 | Free Adult Games

Thanks dildorog!

TROUBLESHOOTING:
For anyone having issues with opening the cellphone and the map on JoiPlay

If you’re getting the “Pickling Error” crash when saving on Sandbox:
UNINSTALL URM! IT’S NOT COMPATIBLE! (Insisting will yield an in-game warning now!)

I haven’t been able to reproduce this bug with a clean install of the game, whatsoever.

Using the Universal Ren’Py Mod will cause it to happen. This may be because of conflicting screen names in the code of that mod.
Make sure to check if you’re playing the vanilla version before reporting this crash.

I won’t dig through another person’s code to fix a bug I haven’t caused, report to whoever develops URM instead. Sorry.

Also try this fix if it happens even without any mods.
If it persists even after that, we’re on uncharted territory. Inform me so we can try to figure out what’s happening!

DOWNLOAD
Win/Linux: GDRIVE – DATANODES – MEGA – PIXELDRAIN – VIKINGFILE
Mac: GDRIVE – DATANODES – MEGA – PIXELDRAIN – VIKINGFILE