Sisters’ Secret (Sins)

Adventure hentai game

Sisters secret cover 2


Buy the game

You can download the demo version from this page:


This versrion is more expensive, and also censored. To remove the censorship, download this file:

Unpack it and put in the game installation folder (by default: c:\program files\sisters secret)


The game is called “Sisters’ Sins” there

Some of the content is locked in that version. To unlock it download the following file:

Unpack it and put in the game installation folder (by default: c:\program files\sisters sins)

Main features


The Plot

Sexual content


System requirements


Why am I doing this

Main features

  • Mix of classical point-and-click adventure and japanese interactive hentai novel
  • Actual gameplay where player’s actions matter
  • Multiple endings and different ways to complete the game
  • Hardcore sexual content
  • All the sex scenes are justified by the game plot and player’s actions
  • Interactive sex scenes

About the game

In the game player explores different locations, talks to various characters, collects items, combines them with each other and with the environment.

ss_exploration1 ss_exploration2 ss_exploration3 ss_exploration4 ss_exploration5 ss_exploration6ss_inventoryss_map

The dialogs look like japanese games with the character appears in a close shot above the background.

ss_dialog3 ss_dialog4 ss_dialog9ss_dialog2 ss_dialog6 ss_dialog7

And of course, when you progress through the plot, you will see plenty of sexy action. More about that later.


The plot

You play as police officer John Rivera who unexpectedly gets involved in the investigation of a massive diamond heist


John 720p

The evidence leads you to the house of the main suspect, a young man named Alexander Spencer. He is missing, unfortunately, but his two sisters are still there and they could be the key to cracking the case and finding the stolen goods.

Diana is the older sister who recently turned 20. She is currently studying at law school where she learned quickly that her beauty holds significant power over men and she never hesitates to use it to her advantage.

Diana 720p

18 year old Elizabeth is the complete opposite of her sister. Shy, and quiet, she doesn’t have much experience with guys. But is she really as innocent as she seems?


Elizabeth 720p

To achieve his goal John will have to discover all the sisters’ secrets. How you go about it is entirely your choice. You can try to earn the girls’ trust or use intimidation and blackmail to get what you want.

Sexual content

Now the most interesting part. Boobs, pussies and fucking. There will be 6 major sex scenes along with some nudity here and there. Player must complete the game at least 2 times to see all the h-content.

Basically, while playing you can be either a good boy or a bad one.

As a “good boy” you will get the usual vanilla stuff: vaginal, oral, anal.

ss_misc2 ss_scene9

If you feel a bit sadistic, follow the path of a “bad boy” and you can enjoy BDSM-action: ropes, spanking, tears etc

ss_misc3 ss_scene4

The player doesn’t just watch the action. He actually has some options in each scene.

And yes, you can have a threesome with both sisters, although it is not so easy.

Click on the link below to see some screenshots of hardcore action (if you don’t mind to spoil the experience)

ss_scene14ss_scene3ss_scene10 ss_scene6ss_scene12 ss_scene7ss_scene13ss_scene2

System requirements

Any PC with Windows XP or higher should suffice.


  • Some interactions are not available at first but become available after specific dialog or event. Pay attention to your character thoughts. There are hints of what can you do
  • Sometimes new dialog options open
  • Some items don’t have any specific use in the game
  • New locations will open during game progression
  • It is a good idea to examine newly aquired items. To do that right click on an item in the inventory

The instruments

The game is made with Adventure Game Studio (

All the artwork is done in Photoshop.

Sketchup and DAZ Studio are used for some 3D references.

Why am I doing this?

It was always a mystery to me why there are no good sex video games. I mean, there are a lot of people who enjoy porn and a lot of people who play video games. And a lot of people who do both. So, it is seems like an obvious thing to combine those things to double the fun. And of course it was done, a lot of times. But for one reason or another I was never satisfied with those products.

In my opinion only 2 classes of games are worth mentioning:

– Japanese interactive novels

I enjoyed some of them. But you can hardly call it “games”. Generally, there are very little choice player makes. Plus there is just too much texts and too little visuals for my taste

– Western “erotic” games

Like “Larry” or “Wet: Sex Empire”. I sure had a lot of fun with those. But there are no hardcore action. Occasional ass or half a nipple is everything player could see. Plus it seems they don’t make them anymore.

So, I decided to mix those genres. I hope, you’ll enjoy the result

Please, use “spoiler” tag in the comment section.

For example:

spoiler 1 example


















170 responses to “Sisters’ Secret”

  1. justadood says:

    hyped, but cant unzip for some reason, maybe a compression error???

  2. Msbh says:

    Looking forward to this being completed. send a little while on this today but got stuck. Good promise though

  3. ALsodef says:

    Where do I find the batteries ๐Ÿ˜ฎ
    I am stuck at the point where I need to find either new blackmail material or champagne. Please help ๐Ÿ˜ฎ
    (looks great for the rest of it, runs smooth and nice)

  4. help says:

    whats its password to tablet 09 08 1994 dont work

  5. help says:

    I’m stuck with magazine, hairpin, vibrator and blender in my inventory, I managed to entrer james room but only with him and I can’t figure what to do next.

    • CherrySock says:

      There is another way inside his room. You should figure out how to use it. Hint: you don’t need inventory items at this point. Good luck

  6. help says:

    found, thx. Done the entire demo congrats for the quality of this game and can’t wait for the final version.

    No bug detected on the way

  7. bob says:

    how do i straighten the hairpin?

  8. help says:

    you need tools for that

  9. Traitstar says:

    If the guy chooses to blackmail Diana with the camcoder, how does he get access to the letter, the chess piece and in turn the secret room?

  10. desperate says:

    Spent almost 45 minutes looking for more blackmail material after threatening her with the footage, I think I might be stupid and just missing something obvious but I cannot for the life of me find it, please help.

  11. constantine says:

    when will it be released full version of it?

  12. constanine says:

    where is the white horse?

  13. Traitstar says:

    I did all the same things that I could use if I don’t threaten her. But I am unable to find a clue to get to the cellar from the library. I cannot find the horse without Alex’s letter.

    • CherrySock says:

      Did you get the “bad” sex scene with Diana?

      • Traitstar says:

        There is only one brief scene where Diana is threatened with the recording and the protagonist forces himself on her for a brief cut scene. I am done with the Kitchen Cellar. I am done with the ring. If I am sweet to Diana, I have finished the demo after finding the letter and the chess piece.

        But if I play bad, I cannot access the chess book without the letter. So I need something to threaten Diana with or I need something else to lure the other sister to share the letter.

        • CherrySock says:

          You should get the full scene with Diana. You need to find another item to prove her guilt (this item is not required when you play “good”. So you probably missed it before)

          • Traitstar says:

            I am pretty clueless at this stage. I have the liquor, the things from the kitchen. I have scouted the whole place, there is nothing that I am able to find new. Please help

          • CherrySock says:

            I don’t want to put spoilers in the comment section. Send me a mail, I’ll give you a hint

  14. Traitstar says:

    I found the Sapphire Ring, but there is no use of that. So what other thing can I use to get the letter. I am eagerly waiting an update

  15. Traitstar says:

    There is a bug. Even after finding the sapphire ring, the drain still says there is something shiny

  16. Ek03 says:

    I am stuck after making a picture of the painting in James’ room. I tried showing the camera to Diana, but it says “Why would I do that?”

  17. Levi2000a says:

    Will there be another beta version before the final release?

  18. Edmonds says:

    The same question as Tomiqw asked.

    Where is the champagne?

  19. Edmonds says:

    using blackmailing stuck on finding new material…

    As far as I understand I need the batteries for the flashlight in order to search in cellar? Where they are?

  20. Del says:

    Got into cellar, distracted butler, retrieved ring, not sure how to bend hairpin as I can’t find any tools around or in my inventory. And don’t know how to unlock bureau

  21. tie says:

    How do I get Bob to give me the tool so I can unlock the liquor cabinet. I have been in the basement and have seen the “D”.

  22. fighter says:

    I am stuck at the same point. How do I help Bob?

  23. Guppy says:

    Hey, how do I blackmail Diana? I have the camcorder but don’t I need to go the good ending to get the letter?
    Also, great game, any news on release date?

  24. xxvegetaxx says:

    is there any way to get something going with the younger sister?? I’ve been able to finish the good and bad parts with the older but I cnat get personal with her, is it because I can get the ring or is it just because of the limitations of the demo?

  25. Roto says:

    I am stuck. I have entered Jame’s room, but I can’t figure out how to get the missing piece in his jacket.

  26. Mared says:

    bug. when you blackmail her and have sex with her it says “cum in her month” I think its mouth ๐Ÿ˜€

  27. jkr says:

    what to do after find white horse?

  28. max says:

    full version is not ready yet?

  29. greg says:

    Stuck with james room, that should i do with handles?
    find 4 handles but cant understand hot rotate them

  30. AZ says:

    Stuck apparently, is there a walkthrough?

  31. Hima says:

    Stuck at where I need to find the name of the paining to enter james his room

  32. james says:

    what is the password for tablet cant figure it out 08 06 1984

  33. Clar says:

    where to find the materials for the caller .. it says “i need to bend the haipin first” but i have found all the items that are available to me … even replayed it few times to see if i didn’t miss anything / different ways

    i get the feeling that the champagne is in there but i cant open it … need help ๐Ÿ˜€

    • Clar says:

      some 1 has to make a guide or at least put hints for every item .. im stuck and i give up for today .. have been playing this for like 2 hours >.>

  34. zetha says:

    Stuck like many avec the blackmail with the recorder. I can’ get the tools, i can’t open the cabinet.

    I’m done..

    • OshaoDar says:

      It can be done, I’ve finished it but not without frustration. The H-scenes are rewarding. At least the item on object use makes sense, also the finding objects make sense, unlike the many indie games I’ve played that have mechanics just like it.

      It’s no secret that there’s a mechanic at the pool fixing the water pipes. The mechanic at the pool does not change his dialogue no matter how many times you test the COLD water valve…

      Try to use items in your inventory with each other. Also right-click on them, some items give different dialogue this way, like the magazine.

      Search in Diana’s room for the batteries for the Flashlight. (This is spoiler enough, won’t reveal the exact location)
      @CherrySock: Fantasticly done so far, I’m enjoying the game so far, can’t wait to see it once it’s finished. Might I suggest perhaps some dialogue to make it easier for some people to use some items with others?

      Also, I think I found Diana’s lost ring but I haven’t yet figured out how to get it. Is that part included in this beta so I have to look better or is it not included yet?

  35. OshaoDar says:


    @CherrySock: Fantastically done so far, Iโ€™m enjoying the game so far, canโ€™t wait to see it once itโ€™s finished. Might I suggest perhaps to add some dialogue that hints people to use what kind of items with each other? Might make it a little easier for all those people who get stuck.

    Also, I think I found Dianaโ€™s lost ring but I havenโ€™t yet figured out how to get it. Is that part included in this beta so I have to look better or is it not included yet?

  36. Ash says:

    There’s a bug.. I think
    Stuck at helping the plumber to get liquor, he cant find the leak and i just flipping the cold switch.
    Got no batteries for flashlight to explore cellar.
    No vibrator found beneath diana’s pillow.
    says the bed is comfy. ๐Ÿ™

  37. MMk says:

    Sigh… after much frustration I found the full blackmail scene. You have to FAIL the first attempt at blackmail, use the plumber tools on an unlabeled rock in the cellar (when viewing the cabinet), find the diamond, then RE-ATTEMPT the blackmail using the diamond. I was really confused from the above comments.

  38. relor says:

    I even fail to distract Diana lol
    any hints ?

    • prasad says:

      dude !!
      i am so annoyed ! i am stuck at a point where i gave that bitch diana her damn ring back .
      and theres nothing more i can do !
      i used the roller got the bra to get the ring from the sewer .. elizabeth doesnt give a shit .. i got a champagne bottle and rum .. and none of them are taking that shit … am i stick in a bug ? or wtf ?

  39. bootus says:

    An error occurs when i give the camcorder to diana.
    I’ve got this message:

    Error: ScriptOverlay::Remove: overlay is not there.

    Can anybody have further information about this error ?

    Thx in advance.

  40. St says:

    Ok, I cannot find the mechanic at all… only reason I know he exists is because people talk about him. I’ve tried the Pool and Showers-area hundreds of times. Could someone just tell me if there is a spesific timing, or if there is something obvious I need to do to get access to him?

  41. Hb says:

    I’m stuck in the hairpin/mechanic scene, ive been playing for more than 3 hours and getting boring now, I have tried mixing the items, offering it to everyone double check the rooms but still nothing! Help!

  42. JK says:

    Hb says: ‘ Iโ€™m stuck in the hairpin/mechanic scene, ive been playing for more than 3 hours and getting boring now, I have tried mixing the items, offering it to everyone double check the rooms but still nothing! Help! ‘
    I have the same situation ๐Ÿ™ Please Help !

  43. Anon says:

    Just wanted to say: Great game!! I really like the resident evil/mystery feel to it

  44. Uh-non says:

    Hi. I’m getting major bug if I don’t check camcorder and just give it to Diana. Something about an overlay error with AGS.

  45. Anon says:

    I have played it through twice but still cannot get past the butler sending me to my room. How do I get past that?

  46. thanhpico says:

    I cant call the plumber. 2 hours to find it @@

  47. polidon says:

    fun game, pretty addicting any updates?

  48. Haofire says:

    How to find the white chess ?

  49. duoluogudu says:

    How to Hairpin bending,and champagne whereใ€‚

  50. Lashman says:

    What is code on Jame’s Desk, thought it might be ABA as it sounds like ABBA, but that doesn’t work

    • Batman says:

      it is abba .. and it worked for me … it opens up the drawer and gives you pills that you will have to go to the kitchen and put into his coffee while he is not looking and that will make him go away so you can do your things in the kitchen

  51. d-.-b says:

    Yup, I’m stuck with Bob not even showing up. Clicked everything I can click, tried to combine all items in the inventory, whatever triggers Bob to show up is not happening for me. Here I was thinking the puzzles in this game were much more logical and straightforward than most point and clicks, at least until this point…

  52. Lashman says:

    Eventually figured out the Desk code for any stuck there also, there is a missing part somewhere in the kitchen (but thats as much as I’m saying). Code should be easy enough to figure out once you get it

    Finished the demo, great game so far look forward to the finished project

  53. R says:

    1. I advise a save feature

    2. ABBA is easy to forget because it’s a sidenote in one talk and then the talk cant be repeated to remind you.

  54. Paul says:

    After first sex with D in conversation about her family it’s says we was…

  55. Master says:

    Full game needed.

  56. RReeDD says:

    Great game, finally a porn game that is actually a game as well.

    Hope you finish it, goodluck.

  57. BLUE_BALLS says:


  58. shade0180 says:

    So how do you get the name of the painting artist

  59. Jackodes says:

    Sir, this is a great, great game, easily one of the best I ever played! Great job, waiting for the full version!

  60. OshaoXin says:

    Just bought the game, how do I put it in Windowed mode?

    • CherrySock says:

      Just run winsetup.exe from the game folder (by default: program files\sisters secret) or use the shortcut in the start menu.
      There is an option to switch to windowed mode

  61. LapS says:

    Baaaaaaah i tried almost everything but i can’t find the recipe -_-

  62. OshaoXin says:

    @CherrySock: Is there a Diana or Elizabeth only ending too? I’ve only figured the other two.

  63. Bird Jesus says:

    the recipe took a while for me.

    it’s in the teen magazine from the beginning of the game
  64. ClueSmith says:

    I can’t figure out how to get the ring out of the drain. Any tips?

  65. jessamine says:

    why would i want to make pancakes or a cake?
    great game btw!

  66. Donaj says:

    How i can get rid of James?

    • Bird Jesus says:
      The first time you need to put drugs in his drink.

      The second time you have to fill a bag with spices and plant it in his package

  67. bubba says:

    where do i find the drugs to spike james tea?

  68. Devildude says:
    I’ve got Bob to fake the note and made the connection between the oar in the bag and the damaged trophy, but Elizabeth has vanished… what do I do now? Any help would be most appreciated.
  69. Devildude says:

    Tried to use the spoiler but failed… sorry!!

  70. Caetera says:


    How can i make pancakes with strawberry plz? I already have the blender with the syrup?


  71. damonalgren says:

    how can i bend hairpain and give bob that whisky please any help i got stucked

  72. Lashman says:

    Where do I find chess piece? I did this in demo but can’t remember now in full version

  73. dead man says:

    pancakes !!!!????:( how can i make pancakes ? plz hep

  74. songossj11 says:

    how do i get rid of james. Bob made fake not for me. What’s next?

  75. MWeb says:

    Hello, do you have any idea how to get rid of from Elizabeth when she is at the backyard?? And also at this point, there is a bug or don’t know, you can show diomand to Diana again (Blackmail scene pops up again) afterthat, Elizabeth dissapears from the game. I can search her bag but can’t speak with her anymore.

  76. CodeRed says:
    It says there are ropes in the boxes in the hidden room, is there anyway to get at it or are you supposed to put something in the boxes instead?
    • CherrySock says:
      Neither. You can’t do anything with the boxes. You will understand why it mentioned if you manage to get one of the special endings ๐Ÿ˜‰

      Please, you spoiler tag next time.

      • Likethisgame says:

        I think this is the ending I am missing. Have all the others. Can you please tell me how to get it? Also I apologize for not using spoilers earlier. I was super tired when I typed the message.

  77. Kiki says:

    I still don’t get how to make Bob giving me his tools ๐Ÿ™ I tried to mix all of my items (magazine, hairpin, notebook, blender, heart medicine, working flashlight, camcorder, spices and sugar. Do I need another item? and which do I have to mix?

  78. damonalgren says:

    how can i get tools from bob please i have been stucked for 2 days

  79. Tanaris says:

    How do I open Elizabeth bag in the garden ?

  80. Kiki says:
    You need her to run (take the time) and give her medicine in her bottle, so she passes out and you bring her upstairs -> now you can open the bag
  81. Lashman says:

    still trying to remember where the missing chess piece is, looked everywhere. Can anyone help?

    • denmark40 says:
      After you bring the champagne to Diana and you have sex, she gives you a letter. Also make the ladder move. Then rightclick the chessbook.
    • Lashman says:

      Thanks for the help denmark40.I knew it was about there somewhere just couldn’t remember exactly

  82. B00m says:

    Games Stuck
    I have finished the game once and watned to try the badboy ending
    I made the pancakes and get Elizabeth out of her room and got what i needed from it,but when i go back to the kitchen the pancakes are still there and i cant do anything cuase i already did everything possbile till this part…
    Elizabeth is gone and cannot be found in any of the rooms in the game

  83. denmark40 says:

    A little bug: when I use the flashlight on the drain, itstill says there is a ring, even I took it.

    And how to proceed, when Diana got ring and diamond and chesspiece is in place? How do I use the letter with chess moves?

    Great game, btw!

  84. Likethisgame says:

    How do i get the 6th sex scene? I read there are 2 threesomes and i have only gotten one of them. I did it by making the sisters forgive each other and by being nice to both of them. Do i need to be mean to one and make them hate each other or what? Please any help would be appreciated! Specifics would be appreciated even more

  85. peterson9803 says:

    I manage to fail at the first opportunity – can’t seem to find the tablet :/

  86. thekevin says:

    so I can get to the part after you show the diamond to Diana and found the cheese peace not sure what to do after that.

  87. Denmark40 says:

    How do I make Bob do something with the anonymous letter? And what about the oar in the bag and the shield?

  88. PrayForJesus says:


    Give bob the anonymous letter and any written papers by the person you want to frame.


    Be nice + sisters forgive is one, the other is be bad + frame sisters to hate each other.
    • denmark40 says:

      The only written papers in my inventory ar letter to Liz, letter to Diana and Alexanders note.
      I guess I need something else – but where to find it?

  89. fist says:

    Do the washing machine or Liz’s panties do anything special?

  90. frank says:

    Why are the Pool,Library and Hall the only location showing up?

    • denmark40 says:

      That’s the places where to start.
      Turn off the wifi in the hall with the pole. Find the ipad. That should get you going.

  91. Zayphar says:

    I need to go upstairs and check to find out the type of candy Diana likes. Can’t find the stairs hotspot. Suggestions?

  92. Zayphar says:

    Sorry, jumped the gun. Pls ignore.

  93. Deathhydra says:

    Does this game have a gallery option?

  94. horn e man says:

    How do I get Bob to fake a letter so liz will forgive her? if i try it just says i need to learn what the anon letter is about

    • Folioman says:

      (spoil) you have to learn from James the prroblem of Elizabeth with drugs then talking about it with her, then use the anon letter on her and finally you can ask Bob about doing a fake.

  95. Folioman says:

    I bought the game and I enjoyed it. the only thing I was disapointed was about anal sex… sorry I’m like Rivera, I’m an anal fetish. I hoped for more options, like anal doggy style, cum endings in girls buttholes, the other sister licking the dripping cum and such thing… come on Cherry Sock! you did already such drawings! so why not in Sistes’ Secret? well I had fun anyway, thanks again.

    • CherrySock says:

      Of course, it would be nice to have all those options in the sex scenes. But it would’ve delayed the game significantly. And the development already took more time than I expected.
      Maybe in the next game ๐Ÿ˜‰

  96. Peter says:

    Hello CherrySock
    Sorry for my english. I do not speak English.
    I signed up here and tell you I love your game it is I efach just horny and I enjoy!
    I always wanted to play your games, but I can not speak English.
    Therefore I would be happy, as all of their German fans who do not speak English!
    If you were in your games Translated in German!
    If you do that you would all make your German fans very happy!
    I hope that you answer me me!
    Your fan!

  97. Felix says:

    Hello CherrySock
    I want love to buy your game
    Have all heard that to be really good!
    But unfortunately I can not speak English! ๐Ÿ™
    Can you make in German language please this horny game?
    Then I would and many others that I know to buy this game!
    I hope you answer me! ๐Ÿ™‚
    Greeting Felix

  98. akakak says:

    How to Hairpin bending,and champagne whereใ€‚

  99. bit says:
    I’m clear goodboy & badboy ending
    but I’m not found use ‘liz’s panty’
    where can i use it?

    ps : ending is ‘gboy’ ‘bboy’ ‘call captin’
    Is it all is ending?

  100. Hrk says:

    pls someone tell me how to open the closet where it is the watch. pls

  101. Bolo says:

    Im stuck, i got the note from Elizabeth’s dresser with the safe code and i can not find the safe. Can anyone help me what to do next? please? Also i can not find Elizabeth in the house, only Diana is in her room.

    • Master says:

      Bolo, Elizabeth is outside. The safe is in the dads room behind a panting. This room is unlocked after you talk to her outside.

  102. Avinash Bhawnani says:

    After giving the fake sister letter to elizabeth, she says she will never forgive her. so how to get the threesome after getting both to forgive each other. how to proceed after that?

  103. Avinash Bhawnani says:

    How to get rid of james?

  104. Serious Questioneer says:

    Is there any complete walkthrough?

  105. mraka says:

    3-some-good ending:

    don’t blackmail diana, find champagne and have sex with her
    find ring & give it diana, say it was at the pool
    forge letter with brothers note, give it to liz
    put weed in james coffee, dont rape liz

    3-some bad ending:

    blackmail diana
    find ring & give it diana, say it was in liz room
    forge letter with dianas notebook, give it to liz
    put weed in liz bag, rape her

  106. sativa29 says:

    where do you find the clip after looking at the tablet?

  107. Gera23 says:

    how do access the bad path?
    when I try to watch the recorder or plant the drugs it will not let me?

  108. Jair says:

    Download links to remove censors are not working. Please fix…

  109. Batman says:

    GUYS !! how many endings do we have ?!
    i just got two … one bad boy but good cop ending ..
    and the other good boy with the runaway ending.

  110. FooBarre says:

    Ted> Turn off the wifi in the hallway.

    Trying to decide if I want to buy the game or not. The demo was ok. The question for me is– in the inevitable 3some scene at the end, do the sisters ‘interact’? Or is the incest theme limited to brother/sister?

  111. Drakthon says:

    Okay, replayed the game multiple times, and still not sure how to even initiate the blackmailing of Diana… What am I missing?

  112. DROSSER says:

    Tablet pass: 08081994!!!!!!!!!!!!

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