Screenshots
Watch trailer on Steam ↗the Changing Prisoner's Dilemma
TGedNathan · Published by TGedNathan
Content notice: Contains depictions of nudity, graphic consensual sex between the friend Miles and the play-controlled character. Adult themes in this game are as follows: - Full female and Male nudity - Strong language - Revealing outfits and lewd scenarios - Self groping and groping from others.
Last updated 4 Oct 2026
You accidentally get involved in a gender-change science experiment with your best friend. Explore your new feminized body and your new relationship with your friend. Who knows, maybe something romantic comes out of it <3
RPG, Simulation, Casual · More free games
Discover the complexities of a relationship transformed by science in The Changing Prisoner's Dilemma. Navigate your new feminized body and explore potential romantic outcomes with your best friend.
About this game
Brandon and Miles have signed up for Dr. Ripley's new experiment—the Changing Prisoner's Dilemma. During the experiment, it is rumored that some guys have transformed into well-endowed girls because of Ripley's new machine called the Biomass Redistribution Converter.
Brandon mistakenly thought they would be girls for just a couple of weeks at most. Little did they know it would be much longer than that!
Will Brandon cheat the experiment, betraying his friend as a buxom blonde? Or will Brandon become Brandy, a busty brunette who will crave new hidden feelings for her once childhood friend?
In the Changing Pirsoner's Dilemma, you will view everything as Brandon/Brandy. You can move/look around the various rooms of the college facility. Everything will be viewed in the POV perspective. You can change the experiment's outcome by finding hidden clues in the experiment as the timer runs out. You can unlock dialogue options and entirely new routes, including different positions ;)
Handcrafted 2d animations
Detailed 3D environments
Multiple transformations
Cutscenes with dialogue options
Everything is spoken with actual audio
Secrets to be found in the environment as you unravel its mysteries.
Interactive exploration of your new self (and other lewd scenarios)
System Requirements
Will my PC run this? →Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 11
- Processor: AMD Ryzen 7 5800H with Radeon Graphics
- Memory: 16 GB RAM
- Graphics: 4 GB GPU w/ 106 GB/s Bandwidth and DirectX 11 Compliant
- Storage: 2 GB available space
- Sound Card: Yes
Recommended
- Requires a 64-bit processor and operating system
Supported Languages
*languages with full audio support
Latest news
Patch NotesOfficial
UPDATE 0.7.11 Male bathroom route
Typin' fast, Clickin' the keys Fueled by coffee, Kill some buggies Built the feature, now we're back for release Just a girl and her stubborn hard drive So many bugs that Refuse to die fix one more thing and three more multiply Don't lose my mind on the dreams of the game We must fight just to keep it alive- The will of the goblin By Alice the code goblin.Done in full at the end of the log cuz Nathan is a meanie! Oh I like this one a lot. Best parody I did so far IMO.WELL LADDIES AND LADIES! It is time for another release of THE CHANGING PRISONERS DILLEMA!That's right! Which means that this devlog will be shorter! and more a change log if i am honest. First off!General changesCode optimisationsBasically required for any proper update x3. We have improved the running of the gameplay manager, save system and several call systems. Bug fixes!We fixed bugs. Uh..... probably should keep a list of these. But rest assured there should be way fewer soft locks, not being able to start the game and audio errors. I tested it myself and could get to the end of each route!New mechanic: FlexingThat's right! by pressing the middle mouse button you can now FLEX YOUR GINOURMOUS MUSCLES. (male only)'New mechanic': Slapping the wallYEAH! You can slap the wall inside the testing room! shiny and new just by pressing H! Nathan: Alice that has been in the game for months. We just did not assign a proper key or image yet HEY!.... They don't need to know that. Anyhoo we are also looking for suggestions on what to put this button on. Keep in mind it is only for the test chamber sceneNew mechanic: Grabbing your dick!YEAH! you can now feel that massive, girthy sun of a bitch in the bathroom. Mila should have a few reactions! You can only do it in the bathroom though (for now~)The bathroom!Yeah guys! You can now enter the bathroom as male Brandon! Perhaps you are a gentleman and let Mila finish dressing? Perhaps you are not.This is the main meat of this update. The triggerscene and exclusive sce...Read full article on Community Announcements (sentry)Patch NotesOfficial
Fixed the saves not progressing
Heya folks! just a quick update for you all. Last update kind of broke the path progressions for the both girls route. Which is a major fault on my side. Well that is fixed! I thought I would clear up a few things too. The Brandon Mila route only goes up to meeting Mila and talking to the scientists. You cannot enter the bathroom yet.To access the path of Brandon and Mila you need to pick the correct options when texting him. How do you text him? Have fun finding out :3Read full article on Community Announcements (sentry)Patch NotesOfficial
New update! That was fast
Gotta code fast Gotta code fast Gotta code faster, faster, faster, faster, faster Codin' at speed of light smartest goblin around Got ourselves a situation Stuck with a new infestation Without any explanation No time for relaxation! Don't, don't, don't, don't Don't sleep, don't sleep Just go, go, go, go, g-g-g-g-go, go Alright everyone! Alice here! I hope you enjoyed that little song. We are hoping to push the TCPD changes a lot faster now which is why it only took 2 months! not six. We will be trying to stick more closely to our planned bimonthly update schedule (Again no promises) and that starts with this one! now let's get right into it ^^ In this update we are beginning on the masculine path of brandon! Meaning you get to see nice large bara muscles, a pissed of little snowbunny and the first steps towards male dominance! First off The new content:We have heard your complaints about there not being anything to do in the test room. Which is why we added something to do! You can grab your phone and talk to miles. Trying to convince him to press or not press the button. If you manage to convince him not to press you enter a whole new sequence of events! See how Brandon becomes bigger and buffer. Then exit the room and see Mila's reaction to your new form TL:DR You can use your phone.Use your phone to convince miles to press or notMeet Mila as Brandon Bug fixes:Turns out my hotfix... broke a few things. The pause menu now works again!Fixed not being able to move after the cutsceneFixed a few minor physics errors.Steam achievements work properly! Heads up:The current game size is quite inflated. We have multiple copies of the voice lines and text documents. Rest assured these will be cleaned as soon as we are able tooRead full article on Community Announcements (sentry)Patch NotesOfficial
0.5.1 achievement and laptop hotfix
- the laptop should now work the second time you enter the professor room- Steam achievements are now working too!Read full article on Community Announcements (sentry)Patch NotesOfficial
update 0.5.0 two girls in a bathroom
Alice here! with something rather exciting to announce!Release of a new update!(I wanted to include a gif in here but the file size was too large ːsteamsadː)That's right. A new update for 'The changing prisoners dilemma' is now out! Our apologies it took so long. So I suppose I'd better get on with listing the changes, New featuresA whole new scene! You will be able to enter the bathroom with your partner. Be it Mila or Miles.Over a dozen new cutscenes in the bathroom. This scene has over a dozen unique cutscenes you can trigger. All at various times, depending on what you are wearing, how long you are taking, and the order in which you do things.See the characters undressed in the bathroom. Finally getting some NSFW content in this porn game (took too long I know -;)A save system. Right now, you can only continue where you left off. However! It has functionality to be expanded so you can have multiple save slots at once :3Bug fixesSound effects and music should now update properly when changing the settingsMouse and cursor should now be a lot more consistentAlex's model will no longer cover things when it should not be doing soMiles will no longer lose his face (I think.... honestly, it might, but I THINK we fixed it)Performance improvementsThe number of ray casts is significantly reduced. Going from A LOT of ray casts per frame to 1. Saving a lot of processing powerImproved the logic that governs the cursor. Consolidating it in one spot where it's updated instead of 3Simplified hitboxesRead full article on Community Announcements (sentry)
