
MODIFICATION APP

MODIFICATION APP
is a 18+ transformation-focused erotic visual novel game in development!
Synopsis
You are given access to a brand new MODIFICATION APP on your phone. A shady developer tells you that you can use it to modify your roommate any way you see fit - and even more she's into it? What will you be able to do? How far will you be able to go? Only way to know is to dive in and start MODIFYING!
About
The project has been in my mind for a long time, as a game I always wanted to exist. A game mostly focused on fun transformations and the fun events that come from those scenarios.
Credits
Game by: Tightly - https://x.com/tightly_dev
Mia VA: Mieraleeeem - https://x.com/mieraleeeem
Support the Project
If you too want to see this project continued, get early access, exclusive WIPs and vote on what will be implemented next, you can support it on Patreon or SubscribeStar!!
Because of itchio's bot problem, any comments with links will be automatically deleted.
Either way, don't click random links in the comments claiming to be "updates"
| Updated | 14 days ago |
| Status | In development |
| Platforms | HTML5, Windows, macOS |
| Rating | Rated 4.6 out of 5 stars (1,102 total ratings) |
| Author | tightly |
| Genre | Visual Novel |
| Made with | Aseprite, Godot, Clip Studio Paint |
| Tags | 2D, Adult, breast-expansion, corruption, giantess, Hentai, mind-control, Monster Girls, NSFW, transformation |
| Average session | A few minutes |
| Content | No generative AI was used |
Development log
- 1st BIRTHDAY!!14 days ago
- Birthday Q&A29 days ago
- 0.9.1 - Locale Bugfix34 days ago
- 0.9.0 - Goth40 days ago
- 0.8.1 - Bug fixes76 days ago
- 0.8.0 - Growth+78 days ago
- 0.7.0 - MilkFeb 07, 2026











Comments
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Android?
When the new update ? Im so ecxited for what you are going to add !
He made a game SO GOOD His whole gang praised him
First of all I really like your work and the game, so thanks you very much.
But if possible I would like to have some updates or change about the Growth modification.
like to have clothes that tear if possible, and more "naughty" ones.
This isn't a criticism, just ideas I'd like to see implemented someday.
Thanks again for your great work.
Also it's a small thing, but I think it would be cool if you added a sort of moon rises and sets and then sun rises animation when we choose to sleep, because otherwise it feels monotonous.
it being the switch from evening to the next mornin
how did you get past the mind control?
what is the easiest way to do goth, I'm am stuck on goth 3, I got there by luck but please give any tips/ or ways to beat it easy
nvm finished it, and the game too
Android port?
Will there be an Android version soon? The game is amazing, but playing it in a browser is very awkward and riddled with bugs. :(
anyone else want to see the milk path get a little more crazy... heh
please add more to the pet one...and maybe mind control
When the next update??
Great game so far! Hope there are references to breast implants in the future. Would be perfect for the bimbo arc
It's really good, I like that she is a willing participant rather than being forced to.
Just finished, I think you should allow players to go to each already completed path quickly by clicking it in the path menu. It would be nice for when you expand on already existing paths, so that you can get back quicker. Also, add a "mommy" transformation path; not looking for the hardcore dom type, just wanting to be called good boy and such.
SUUUURRRRRRREEEEEEEEEE
No, I'm actually not interested in being dommed, I just want to feel safe.
the fact you keep replying is why i KNOW you wanna be dominated
I mean, I have no reason to lie. Believe me or not, I do not want to be dominated. I've just been neglected without much social interaction for so long that I crave for someone to just care about me.
The set up connection thing takes way too long on Mac because it doesn't register clicks.
This game is a work of art. Love it!!!
I literally love this game so much, I just slightly wish there was a way to have some girl on girl action, but I know its SUPER difficult to have to just draw new shit. I cant wait to see what the future holds for this game!!! <
As a Growth path enjoyer, I like this game. Thank you for your work, I'm looking forward for future updates :D
It would be really cool if you were able to mod your own character in the future
what other transformations do you have planned for by the way great game
When is the next update coming out
when is android version?
honest review
*Sonic- Colors (Opening theme)*
If you know ball, you know ball
You should add a symbol that indicates if a scene is new or not.
A few minutes after this I saw the star.
Can you add android or tablet compatible
look at 1st birthday devlog, he explains there
HAPPY ANNIVERSARY!
thank you!!!!
add femboy XD
GOOD ANNIVERSARY
thank you!!!!
I think it would be nice to add gallery no?
Are you gonna at like weight gain making her fatter or adding a hyper muscle path ?
Can this have girldick options?
I know you it has lost twice in polls but will the shrinking effect still happen at some point?
I need help downloading the game on my iPhone.
same
its for Mac it says it the download title
iq below 80
this game is honestly peak, kinda curious if the gender choice will ever affect anything visually in the future tho?
Is there a way to go on a specific path that has been already explored without restart at the beginning ?
Anyone else see the main character kind of looking like Chara From undertale In my opinion, it would be cool for another route being a undertale themed, Route Just a suggestion, of course
There will be a pregnancy booster version
I wish, would be tight ngl
I actually got scared during the vampire section... even though it crashed.
How many paths even are there? And WHAT are they?
6 paths, it takes like an hour to get them all, not that bad
Am I being dumb or is there no gallery/way to view unlocked scenes? Please add if not <3
Great stuff!
there isn't a gallery currently, but it is planned for the future!!