Ultimate Sissy Simulator
A downloadable game for Windows
Master Game Mode:
In this mode, you create a male character and start making connections. Your goal is to turn your contacts into sissies by getting them to agree to certain things. Once you’ve got your first sissy, you can start brainwashing them to accept the ideas you’ve planted inside their heads.
Mechanics and Features: (not the full list)
- Appearance customization
- Face and body modification
- MtF Transition
- Interactive sex
- Complete sissyfication process
- Dungeon
- Chastity cage
- Room customization
- Sex toys
The game is in Early Access, therefore, you may (and probably will) experience a variety of glitches, bugs, and other issues. Please help improve the experience by providing useful information about any bugs you encounter.
If you are unable to purchase the game with a credit card, you can buy it through Patreon by becoming a member of the 'Ultimate Supporter' tier.
| Updated | 6 days ago |
| Status | In development |
| Platforms | Windows |
| Author | ussdev |
| Genre | Simulation |
| Tags | Adult, bdsm, crossdresser, femboy, LGBT, sissy, sissymaker, sissy-simulator, Transgender |
| Average session | A few hours |
| Languages | English |
| Inputs | Keyboard, Mouse |
| Links | Twitter/X |
Purchase
In order to download this game you must purchase it at or above the minimum price of $6.95 USD. You will get access to the following files:
Download demo
Development log
- When to expect v1.5.0-a3 and wtf is going on right now?11 days ago
- Some info on the new progression system and more56 days ago
- v1.5.0-alpha3 release date63 days ago
- Update on the gameAug 25, 2025
- NSFW Censorship + Future of Ultimate Sissy SimulatorJul 26, 2025
- Ultimate Sissy Simulator - RoadmapJul 11, 2025





Comments
Log in with itch.io to leave a comment.
How do you get blackmailed or get a master? Played both builds - test and public - and only seem to have hookups or kidnapped (which is essentially a hard end as eventually your captor stops giving tasks and it breaks). Nobody I add through the app or search lets me chat, I can only play the card game, offer hookup or check stats.
Dev said it a lot times, master mode is playable in Version 1.2.0-alpha2, in newer versions most things in master mode disabled, it's unplayable.
And I also can't log in to the master room.
pretty sure its just bugged rn, along with a ton of other stuff
Hello, how to start a business in master mode in version 1.4.1
I sent you a message on X, name @yl909587
messaged you on X, name @ipo.pocolo
I sent you a message on X, name @SirWillardtheII
I sent you a message on X, name @icyman2324
sent a twitter message: @Idontfuggenknow
sent a message on x: @bonquilious
I sent you a message
How do I finish stage 1??
I'm stuff on the FEMBOY part of stage 1.
I'm not sure what to do with the LEGS and the GLUTES..
Can someone please explain to me what to do to finsih those two
the legs and glutes can be done in same way as in older builds by simply changing pc's(playable character) schedule by adding vegetarian diet and workout to first cardio weight loss exercise for around 2 weeks and then changing it to lower body(bodyweight)
this works cuz game struggles a lil bit with stats, hope i helped :3
you probably talking about the demo version. add some workout routines to your schedule. there are a few that target the legs and glutes. this demo is outdated though, it will be replaced with a new one soon.
To the peeps (and ussdev) who've played the "broken build", is there a way to progress time while being kidnapped? or that is broken and I am just dumb lol
it's broken, no way to exit kidnapping.
Oh I know its broken but assumed from some of the comments that time passed since few people said that they were xyz days in the cage but somehow I didn't see how to increase the passing of time inside. I wanted to see what sort of tasks or deals were offered.
exit to the main menu (hit the spacebar), you can fast-forward time from there.
Ah thanks!
Just let dev to do his work, it'll be better without "frustation" posts... c'mon, some of us here are so frustrated like I never was... even sitting in a trench without food, water, cigarettes and with almost empty mag's))
How can anyone be mad about a update of a 7$ Indie Game, made by one person? There is a Version you can play and there is a reason why he gives the Play Test on X. Maybe he should do Play Test only in Private with People that are really into Testing and not gooning over a non-playable version until the frustration hits. You all should be a bit more friendly, this wouldn't be the first time that a Dev stopped worked at all after so much hate from just sexually defective boys. You all played the current Version, let him cook, it's his work after all, be grateful that he continues to work on it and blogs about it.
I sent you a message in X '
I need tests game pls name
AT cJJ
A play test Version that is stated as not playable, is not playable. Don't you say!
Bro, hurry up and just release it with bugs. you're gonna lose most of your supportive audience if you keep delaying it, we bought it in early access, we know there's gonna be bugs but we still dont have access. i dont even have X (twitter) so i cant even get the test version if i wanted. at this point i think i'm just gonna stop checking and move on, we don't even have a release date anymore, wouldn't you want as many testers as you can get? we already paid, just give it to us.
Why should he worry about non-paying "supportive" Audience, we all already payed the price of the Game. And no, he won't want as many testers as possible, as it is already known to be non-playable.
Its not like your paying per month 😭, be happy with your stable version and give the dev some time to make the new one stable. My god grown adults acting like kids over a game update taking longer.
Hello ussdev. Take your time. Don't give us release dates. It causes a lot of pressure and it's the main source for bugs.
I suggest that you publish the test build in addition to the stable builds on the download page with a warning that it has bugs.
Make a list of known bugs in a text file and put it in the main folder of the test build. Publish a new test build each week or whatever frequency suits you. And tell us in the known bugs file if there are specific things you want us to test.
Once you have a stable release published, I suggest working on smaller updates and continuing with test builds in between.
I sent you a message, its benmaureaux
you dont have to listen them bro you are doing a great job waiting for like a week for a PEAK porn game wouldnt kill anyone
I just bought the game but not seeing the newest install listed. Most recent is showing Jul 13, 2025. Please help!
the newest update has been delayed . the dev has been working on it . you can go on X and ask to have a test build to help the dev. to find the bugs .
So not only did he not make an official post (had to find it in the comment section) about it being delayed again, now I have to hunt him down on Twitter just to get a bugged version? This makes no sense at all lol. It's hard not to be annoyed by that. Like bro has 0 communication skills. Not everyone has time to comb through comment sections.
I feel like its common sense for one to read through the comments and builds before buying the game... I see where you're coming from but take some responsibility at least...
Lol typical gaslighting and just trying to put someone down. You fail to understand his official post was him saying he would have a release on monday, there has been no other official updated post since that. Sure, it's my mistake to buy the game trusting him on his word. I take full ownership of that, but it's cheap and I'm not even mad about it so why are you raging at me? I'm merely trying to communicate how It's annoying. Now I have to track this dude down on social media just to get a mock version of something I wasn't told officially on any of his platforms, wasn't released like he said it would be, but was only mentioned in an obscure comment I had to scroll through to find. But okay, It's all my fault lmao sure pal.
Yes, it can be annoying however would you rather thing be release on the date that was promised with game breaking bug? Waiting a few more days for the game to be polish wouldn't kill you, and no one is forcing you to hunt him down to get a mock version. If you wish to help out feel free other wise, give the dev some breathing room. His mistake was making impossible deadline and downplaying his effort.
I found a few more bugs in my hour or so playing.
- None of the meters, arousal, pleasure, orgasm, or satisfaction build while anally masturbating
- In masturbation, the Beginner Gaping Training and Beginner Sissygasm Training don't seem to have any objectives, so they can't be completed and neither can the Basic Anal Training goal. Similarly, the Basic Cocksucking Training and Basic Sissygasm training under the Basic Sissification goal don't have objectives either for now.
- I noticed that trying to get my sissy's weight right was really difficult. I would do the vegan diet to lose weight for seven days and then all of my physical parameters would be basically at zero. Then I'd do the weight gain for three days and everything would be too high. Once I went under body modification and did the body feminization, I just put on normal diet and now my character's weight has been fine. Probably a skill issue, but figured I'd mention just in case because it did feel a little out of whack. Thank you for givememoney lol
I appreciate you sending me the file for this update and I love how everything is progressing! You're very talented and I've had a ton of fun with it
Not gonna lie but i thought the sissygasm aspect was working alright, especially if the accept sissy was working, you normally wouldn't be able to sissygasm until you accept how to enjoy anal sex.
I noticed a bug that's definitely more minor than most of the other bugs, but I found that the tank top clips while laying on the side to masturbate
After testing out the new version for a bit, I genuinely think that the dev did a good thing by retconing the new update, I like the update and I think it added a lot of good new content. However there are many game breaking bugs that would've frustrated many people more than just delaying it, saving doesn't work properly, many quests and other new functions are super buggy, rooms get unbought after progressing the game.
Basically all I can say is be patient and be understanding to the developer, I doubt anyone with actual game expirence will criticize him/her.
Also to USSdev, you're doing a great job, the only suggestion I can give for you is to stop announcing updates, and when you're happy with a update release it to surprise everyone, it would make people less hostile when a update is delayed or doesn't come out. If you want to do a teaser release another roadmap with a update window.
I think that's honestly the best way to go. My biggest frustration hasn't come from the wait in general. I completely understand that game development is very difficult and takes a lot of time.
My frustration comes from being given a date to expect to play the new update, logging in, and finding out that the update has been delayed. And then logging in on the delayed release date, and seeing that it's been delayed again.
I know USSdev is working their tail off trying to get this thing done and I don't fault them at all for the time between updates. I just hope that in the future, they just give general windows for releases and/ or just shadow drop updates.
I discussed with USSdev on Twitter and he said he/she would release updates when they're ready like most other indie devs on here, thats been my biggest deal with this game that he/she puts too much pressure on theirselve to complete updates when announced before they're done, often causing the fanbase and theirselve to feel worse when updates are delayed.
the kinkup app freezes on some saves and becomes stuck : no more requests, impossible to vhange settings etc..
when kidnapped, softlocks after 3rd or 4th master request tile change but it's only the hypno VR outcomes, after a while request stop altogether
hey jo whats wrong where is the updated game :/
Solo Dev's Hell is continued) Ok I'll wait more, no problems with that. Big updade - many bugs, nothing unusual here)
ive purchased the game but cant update it??
I cannot place "I am a sissy" brainwash idea. Any idea how??? I also cant chat with contacts. I feel I am stuck
because it's not a playable game, otherwise it would've been released already.
i know i come across like someone who delays shit out of boredom or laziness, but the reality is that the game has become much bigger. It's hard to test, hard to debug, and super hard to get everything working on time, especially during these difficult times when i can't work full-time on the game anymore.
To 'place' that idea, add 'watching porn' to your schedule and choose 'sissy hypno' category. It works like 4 times out of 10.
a list of a couple bugs ive found. hopefully none of these are new to you:
- right clicking while placing furniture freezes the item in place
- chastity endurance in progress menu is randomized each time you change the screen
- softlocks when you choose "by master" feminization and click sissification goal again
- belly button piercings are appearing on the floor between the characters feet
- collars start clipping when wearing and adjusting other clothing
- room settings isn't accessible while looking at furniture, while in customize mode
- furniture other than beds can't be placed even though there is no cam show area in room
- esc button doesn't work to close room settings menu
- masturbation position won't switch from penile to others unless vibrator is de-selected, same thing with the dildo going from other pos. to penile
- brainwash "idea accepted" notifications pop up every day after they first appear
- inserting butt plug de-selects vibrator
- under progress->basic sissification->basic chastity training, the challenge doesn't complete if you've already reached 100% endurance with the reg. chastity cage and move on to the next cage
- contacts search filters do not do anything
- face mask is not removed during oral scenes
Thanks!
Hello everyone, here's my brief report on version 1.5.0 Alpha 3, which has caused so many problems for our beloved USSDev. And it's true, the game is almost unplayable. In the short time I've had it, in MASTER MODE you can't have sex with the sissys; the screen goes black and nothing progresses. In SISSY MODE, the progress indicator is blurry because it doesn't show the progress it should, and you have to restart the game. And when you're kidnapped, there's no escape, because if you follow the kidnapper's orders, you'll reach a point where there's nothing left to do, no matter how many days pass. That's all I could see in my short time, since, like everyone else, I have work to do to continue existing in the world. In MASTER MODE, you can do the MtF transformations without sex, but of course, we all know what we want, right? And in Sissy Mode you can transform and masturbate. I haven't been able to sleep with any men due to lack of time, but if our dear developer is given a little more time, I know the game will be released without bugs. But don't despair, there are many more games to play, including on the itch.io website itself.
Final words: Dear ussdev, don't worry, work at your own pace and ignore the negative comments. I know there are people willing to wait and enjoy the game when it comes out.
Excuse me, but I don't speak English and it was translated by Google Translate. I apologize for any grammatical errors.
You can completely ignore Master Mode in this test build, it doesn't work, and no, it won't do all that black screen crap in the release version. I'm aware of those bugs. Thank you for your time!
Hey. I really would like to play the new version even if it has some bugs, but I can't create a X profile (It says that it can not verify that I'm human). I bought the game 2024-12-03. Is there another way for me to get to play it or do I have to wait for the fixed 1.5.0 version? :(
Don't have X since my internet provider doesn't support it for some reason, could you send it here?
Damn the amount of hate I'm seeing in these comments for a solo dev delaying a porn game is absolutely insane. If yall are so desperate for the update that you're willing to flame the developer online for having problems with getting it out, then you gotta do some soul searching or something.
This is a great and unique project, mr/ms developer. I'm sure you tried your best and that's absolutely nothing to be ashamed of. Game development is extremely difficult especially when you're only able to do it on the side. I'll shoot you a dm on Twitter so I can help playtest.