Mentally Unstable...
Staff member
Mar 9, 2017

Until recently you've lived in a different part of the country with your father. Your parents divorced when you were very little and the family was ripped apart after a fierce custody battle. Your mother took her three daughters home, while your father moved away with you. You haven't seen your family since and any attempts at communication were very much discouraged by your father. But now, everything has changed after his sudden death. During your fathers funeral you were approached by a woman you instantly recognized as your mother. She asked if you would be willing to go home with her, meet your sisters and be a family again. You hesitantly said yes...
Thread Updated: 2019-06-24
Release Date: 2019-06-24
Developer: Perverteer -
Censored: No
Version: 0.20 Extra Scenes
OS: Windows, Mac, Linux, Android
Language: English
3DCG, Anal sex, Blackmail, Corruption, Creampie, Handjob, Incest, Interracial, Lesbian, Male domination, Male protagonist, Masturbation, MILF, Mobile game, Oral sex, Romance, Vaginal sex, Virgin, Voyeurism

1- Extract to desired location.
2- Click on "SisterlyLust.exe" to start playing.

Incest Patch: Download from download section OR (read below):

Open the developer console by pressing Shift+O and type: set_special(True)

When properly patched, the title screen will show 'Taboo Edition'; if you didn't do it properly, it won't change, so double-check that the title screen changes (see below). You only have to do this once, the changes should be persistent and will carry over to new releases of the game.

v0.20 ES

Implemented Day 37 and 38
Day 36: Alternate flow of events during Liza club event
Day 36: Fix coffeeshop dialogue about Megan (thanks to Simbag and goobdoob)
Day 33: Remove empty menu option for Bella (thanks to blabla11)
Day 35: Fix Liza's post mall event (thanks to goobdoob)
Day 25: Fix incorrect references to meeting Dwayne (thanks to blabla11)
Day 18: Cleaned up some renders of Mrs. Smith (thanks to blabla11)
Day 3: Fix menu conditionals (thanks to blabla11)
Day 2: Moved variable flag for Liza's intervention
Day 2: Remove redundant code (thanks to blabla11)
Lots of spelling and grammar fixes (thanks to hideouz)
Lots of fixes during the early part of the game, including the removal of the instant game-over when hugging Bella (thanks to blabla11)
Reduce the number of instances of the word 'glans' (thanks to blabla11)
Mrs. Smith/Susan features in the extra scene, using two of her larger assets for the benefit of the MC for $15+ patrons.
  • Day 34: Fix render of Bella without a pussy (thanks to HobowithaLightgun and Abby Sciuto)
  • Day 31: Fix Alina talking about helping Rachel when you're not in a relationship with her (thanks to That_Guy_Lurking)
  • Day 31: Set m_relationship flag to false when declining at Discreet
  • Day 30: Fix Rachel's thumbs when punching you at the bowling alley
  • Day 29: Fix bugged dialogue with James after sleepover (thanks to 1800 Mr. Tourture)
  • Day 16: Fix continuity error (thanks to a1fox3)
  • Day 15: Fix continuity error (thanks to yougopurple)
  • Day 12: Add new image to better reflect scene action (thanks to a1fox3)
  • Extras: Fix Riley's uncomfortable head position (thanks to HobowithaLightgun)
  • Fix calling of name input modals (thanks to gigan)
  • Spelling and grammar fixes (thanks to scrumbles)
  • Reduce the number of instances of the word 'musk' (thanks to Aristos)
  • Day 33: Fix Mrs. Smith Discreet path availability
  • Day 33: Fix unavailable scene with Mrs. Smith for those on romance path only
  • Extras: Removed artefacts from Iris' forehead in two renders
  • Spelling and grammar fixes (thanks to MRMIdAS2k)
  • Implemented Day 33 and 34
  • Day 32: Fix wording
  • Day 28: Fix bugged conditional during sleepover
  • Day 15: Fix continuity issues in two renders (thanks to Abby Sciuto for spotting them)
  • Spelling and grammar fixes, thanks to hideouz
  • Fix input autofocus on save and character name modals
  • Fix interfacing hiding on Android devices
  • Day31: Fix Adriana saying MC's name
  • Day31: Fix swapped responses at the end of the Discreet session
  • Day31: Set tickets variable after visiting Rachel, unblocking the concert on Day 32
  • Day31: Fix Alina referring to concert out of context at the end of your booty call
  • Implemented Day 31 and 32
  • Day 30: Altered bowling scene to adhere somewhat to the rules of the game
  • Day 30: Added an extra render during bowling scene
  • Day 28: Fix Aline > Alina
  • Day 29: Fix regression of Mrs. Smith morning scene
  • Day 15/16: Add pauses after panning images
  • Add better input modal for naming characters (fixes Android issue)
  • Add delete buttons to Save/Load screens
  • Add ability to name saves
  • Add button to hide interface on Android devices
  • Day 28: Fix threesome/foursome when you're willing to share Ana
  • Day 29: Fix unreachable sexual encounter with Mrs. Smith
  • Day 30: Fix relationship checks for Rachel's discovery of relationship with Bella
This cleans up some weirdness for players who are not in a relationship with Rachel and saw her just at the end of the latest episode and it also allows players to pleasure Mrs. Smith instead of just seeing a black screen.
  • Implemented Day 29 and 30
  • Day 27 & 28: Grammar and spelling corrections, thanks Bobomb
  • Day 28: Fix Alina speaking as Ana
  • Day 28: Fix sleepover bug where you couldn't get the threesome/foursome after being with Alina
  • Day 12: Fix render of Rachel looking like a donkey
  • Fix scrollwheel in Extra Scenes section
  • Possible fix for Android startup crash, courtesy of the66
  • Fix quick menu visibility
  • Implemented Day 27 and 28
  • Day 26: Fix unreachable dialogue with Rachel
  • Day 23: Fix event loop related to day23_m_opera check
  • Day 23: Fix possibly undeclared day23_m_opera variable
  • Day 23: Fix possibly undeclared day23_flashback and day23_flashback_r variables
  • Extras: Fix Extra #10 scene reference
  • Converted all renders to WebP, thanks to the66
  • Spelling and grammar fixes, courtesy of Bobomb
  • Fixed some renders (day 5, 8 and 11)
  • Implemented Day 25 and 26
  • Day 24: Fix Liza scene popping up when buying the wrong toy for her
  • Day 23: Fix repeatable opera visit
  • Day 23: Add extra threesome check during flashback
  • Day 23: Fixed a few grainy renders
  • Bundle GUI assets in archive
  • Implemented Day 23 and 24
  • Day 22: Fix message from James appearing out of context
  • Day 22: Fix James reacting surprised about your relationship with Ana if he already knows about it
  • Day 21: Added some images to the talk with Rachel post-flashback
  • Day 20: Fix incorrect screen flow on Bella path
  • Day 18: Fix two masturbation renders
  • Day 15: Fix message from Alina showing up regardless of your relationship status with her
  • Fixed issue with image corruption (green screen) on some Android devices
  • Fix width of choice buttons when there are two columns
  • Fixed various typos
v0.11 (Bonus Edition)
  • Implemented Day 21 and 22
  • Fix image dimensions for Extra Scene 7
  • Fix choice button width causing some choices to run on multiple lines
  • Day 20: Protagonist now only recognizes Mrs. Steel if the shopping event has occurred
  • Day 19: Do not refer to bikini during Liza fingering scene
  • Day 6: Fix render of non-naked Bella to naked version
  • Added extra credits screen thanking top-tier backers
  • Fixed various typos
v0.10-HD (Bonus Edition)
HD release which updates all the old renders to upgraded Iray versions.
There is no new story content, other then the extra scene for $ 15+ patrons (included in Bonus Edition only).

  • All images have been updated to Iray renders
  • Game now runs at 1920x1080 pixels
  • Added Android build
  • Day 20: Fix comment about Brody to Riley when you haven't seen him
  • Day 19: Remove option to "Relax a little" after visiting Mrs. Smith for the second time
  • Day 19: Fix scene flow with Bella and the visit to the doctor
  • Day 18: Kissing Mrs. Smith is now only possible if you have a relationship with her, or if you've talk with her whenever possible
  • Day 11: Added option to resolve situation with Brody even if you do not have a relationship with Liza
  • Day 4: Added extra shop render
  • Day 1: Remove conversation option after talking about adjusting
  • Arrange menu options into columns when there are more than four
  • Fixed various typos
  • Implemented Day 19 and 20
  • Day 17: Fix incorrect jump to dinner at Nia and Rebeca's after declining Rachel at the yoga studio
  • Day 17: Fixed Nino's skin texture during night scene
  • Day 17 and 18: Various spelling and grammar corrections
  • Day 16: Set fingering flag at correct point for Liza
  • Day 15: Fix Alina extra scene availability
  • Day 15: Fix wording
  • Day 13: Fix wording
  • Day 8: Jump to evening after conversation with James about Discreet visit
  • Day 8: Only visit Discreet when you actually have an appointment
  • Day 9: Fix wording
  • Day 5: Fix wording
  • Day 2: Fix wording
  • Fixed various typos
  • Updated statistics avatars
  • Implemented Day 17 and 18
  • Fixed checking for status of reading Mrs. Smith book
  • Day 16: Add variable instead of static name in menu option
  • Day 16: Correctly reference the blackmail option in Dwayne's email
  • Day 16: Hide dialogue options during restaurant visit with Bella
  • Day 16: Recognize that the MC has slept in Rachel's bed
  • Day 15: Fix unavailable nightly visit to Mrs. Smith
  • Day 14: Fix wording regarding James visit to Hazel
  • Day 8: Fix incorrect jump to scene with Ana after James' call when you don't have a relationship with her
  • Day 1: Fix wording
  • Implemented Day 15 and 16
  • Day 16: Fixed indentation erroneously triggering Discreet facial
  • Day 8: Fixed Ana availability when you don't have a relationship with her
  • Day 7: Lowered trust requirement to speak to Bella
  • Fixed various typos
  • Implemented Day 13 and 14
  • Day 12: Fixed some wording when leaving the party with Liza
  • Fixed Liza's bugged corruption attribute
  • Hide "Extra Scenes" menu item when in replay
  • Various text corrections, thanks to bossapplesauce
  • Day 13: Removed duplicate line during phone call
  • Day 13: Fixed spa visit availability
  • Day 14: Fixed wording of end of television scene to better reflect what happened before (hardcore path)
  • Day 14: Fixed scene flow when not having sex with receptionist
  • Implemented Day 11 and 12
  • Added statistics screen showing corruption and trust points for the main characters
  • Minor fix to Extra Scenes button grid
  • Day 10: Fixed incorrect render during Discreet visit
  • Day 05: Fixed missing render
  • Day 09: Added variable to check if you slept in Rachel's bed on Day 08
  • Implementation of Day 09 and 10
  • Day 07: Correctly populated MisterX's name variable, this caused problems during the alleyway sequence on Bella's soft route
  • Various text corrections
This is the v0.42 public release of the game. Day 7 and 8 are implemented. This release also includes bugfixes from the original 0.4 and 0.41 which were available for patrons only. Below the download links you'll find the complete changelog.
IMPORTANT: There was a nasty bug in the original v0.4 release. Saves made with that version are incompatible with future releases. Any save made with the v0.33 are any release from v0.41 onwards is not affected.
Bugfixes - fixes saves and statistics resetting. Only saves from version .33 and older will work. Otherwise, a new game is required.
Implementation of Day 07 and 08
Inclusion of first bonus sex scene ($15+ patrons only)
Added Credits and Extra Scenes menus
Various text corrections
Fixed missing images in animated sequences
Day 03: Fixed missing image during conversation with Liza
Day 03: Fixed Rachel commenting on her naked body when she wasn't aware of you (added variable)
Day 02: Visiting Rachel at night was incremented twice
Introduction of two different versions (Standard and Taboo)
Enabled developer console
All mention of familial relations has been removed from the Standard Edition
Day 06: Minor text change detailing the time of Bella's money drop-off
Day 06: Refusing to sleep with Rachel didn't work
Various minor text corrections
This release should fix the conversation bug during Day 6, Jerricho13 reported. I think the bug triggered when you didn't have a movie date with Rachel causing the conversation menu to run out of options and looping the same scene over and over. I got a bit stuck in all the story variables, it seems.

Backup your android saves before installing the new version, just to be sure!

Win, Linux: - - - - - -
Mac: - - -
Android: - - -
Others: *

Patches: -
Extras: -
Thanks for the links h4xoor, "Taboo Edition" Patcher for Android by @JayneCobb , and compressed version by playb0y44 !
* This unofficial port/version is not released by developer, download at your own risk.

146494_day01_apartment_door_m_smile.jpg 146495_day02_sade_4.jpg 146496_day04_a_p_room_licking_2_a.jpg 146497_day05_al_cum_face_post.jpg 146498_day06_twmm_05.jpg 146499_day10_al_p_room_fuck.jpg 146500_day10_discreet_mask.jpg 146501_day12_ri_bedroom_cowgirl.jpg 146502_day13_b_park_ice_sit_hug.jpg 146503_day13_b_room_dildo_anal_fingering_orgasm_face.jpg 146504_day13_l_room_smile.jpg 146505_day13_m_kitchen.jpg 146506_day16_apartment_breakfast_sit.jpg 146507_day16_b_restaurant_food_small_smile.jpg 146508_day18_m_river_topless.jpg 146509_day20_r_room_penetrate_closeup_face_pain.jpg
Last edited by a moderator:


Active Member
May 19, 2017
Do the sample screenshots look like different rendering tools where used? A couple look like they might be a different media as well.

*Something about the choices of pics, in game everything is consistant*
Last edited:


Degenerates like you belong on a cross.
Staff member
Jul 19, 2017
Do the sample screenshots look like different rendering tools where used? A couple look like they might be a different media as well.

*Something about the choices of pics, in game everything is consistant*
I'm playing it now and honestly some of the models look like they were geniunely made in Sims 3/4 because they have the weird facial structure from those games(is that even possible to import to another game I don't know) in some of the interaction screens, def not DAZ it seems.

Game is pretty good though so far for a first release.


Active Member
Aug 15, 2017
Mom's into BDSM, youngest daughter is the exhibitionist/multiple partner. Middle daughter is the bad girl, who hates you, likely the most corruptible. Oldest daughter is the saint, likely going to be the most fun to corrupt. Her boyfriend though, I can't wait to kick their ass.

The bright side of this situation is save for the middle sister the rest it will be a strictly relationship building game, while it may move quickly I think the storyline needs a little kink to entice people into investing in the game.


Active Member
May 2, 2017
I don't know if i finish this version or not, but there's a loop, in the coffe scene when you talk to the mother's company. But the game is good, nice renders, the story is pretty rush and looks simple, but could be a good start.
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Active Member
Sep 7, 2017
found a game breaking bug day 6 at coffeehouse with James its looping back to the start of the sequence
so am stuck there


May 28, 2017
I've got no pb when I made the phone call with MC (not james). Maybe try that way.


Active Member
Sep 17, 2017
Nope nothing works even went through everything again on a new save.
Probably a certain choice that bugs it somewhere


New Member
Jun 16, 2017
Nope nothing works even went through everything again on a new save.
Probably a certain choice that bugs it somewhere
Yeah I have the same problem, I guess the choices that cause problems have to do with mother, did you choose everything the same as the first time while talking with mother?


Well-Known Member
Mar 3, 2017
I think you need to setup the movie date with the youngest sister,cause after the call for the apointment u go to the movies with her
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4.50 star(s) 88 Votes