Modification App

4.7

(38 votes)

Game Information

Developer

tightly

Version

v0.11.2

Engine

Others

Release Date

Jul 17, 2026

Last Update

Jul 25, 2026

Censorship

Uncensored

Overview

Modification App is a transformation-focused visual novel for players who want a slow, choice-driven corruption story with an erotic edge. The tone stays intimate and a little mischievous, built around one central experiment rather than a sprawling cast.

Story

A shady developer hands the protagonist a strange new phone app that can modify their roommate's body however they choose. She turns out to be more than willing to go along with it, and the app becomes the thread that pulls both of them somewhere neither fully expects.

Gameplay

Play centers on using the app to trigger physical changes in the roommate, unlocking new modifications by exploring a sandbox-style home environment and completing short in-scene events. Some changes are gated behind small minigames tied to specific rooms and times of day, encouraging players to revisit locations as new options open up. Progress is measured by how far the transformations are pushed and what new scenes that unlocks.

Features

Animated, voiced scenes paired with 2D character art
A body-modification system tied to exploration rather than a fixed storyline
Transformation and mind-control themes woven into a single evolving relationship
Monster-girl elements introduced as modifications progress further

Installation

1. Extract and run.

Changelog

v0.11.2

NEW NIGHT EVENT- Boobjob Kiss
After Breast Expansion Lv.3, visit Mia's room at night
NEW NIGHT EVENT- Bouncing Missionary
After Breast Expansion Lv.3, visit Mia's room at night
NEW MINI EVENT - BE Dream
After finishing the Breast Expansion path, sleeping while Mia is in her default state will play this automatically.
NEW LOCATION- Owlracle Cafe
Allows player to purchase hints.
After unlocking the GIMMICK store, there's a 80% chance a flyer will appear in the kitchen. Interacting with it will unlock the cafe.
NEW CHARACTER- Violet
Works as a barista in the Cafe.
NEW MINI EVENT- Meeting Violet
Visit the Cafe for the first time.
NEW ITEM- iNanum Gaming System
Bought in the GIMMICK Store. Use it to earn TP.
NEW MINI EVENT- Setting up the Console
Started automatically once iNanum Gaming System is bought.
NEW MINIGAME - Pet Sweeper
NEW MINIGAME - Sexy Slides
NEW FEATURE- Mia Backseating
When playing the gaming console, if Mia is in the same room, she might give commentary (and very rarely, some help).
Certain paths have unique dialogues (mainly Bimbo and Goth).
NEW FEATURE- Low-Resolution mode
On the Main Menu, this setting makes the game run with all textures at half resolution. This should improve framerate and avoid visual bugs on lower-end devices.
Create Android Build.
Make the phone larger on Android devices, so it's easier to click.
Make bat minigame not use shadows when playing on lower-end mobile devices.
Create random chance utilities to allow for random events.
Update Growth Dream event to also have a 30% chance of happening when sleeping.
Show tooltip in bottom left corner of Paths app, if player has bought the Teleporter.
Customize Godot engine to allow for multi-resolution textures
Change all preloads to loads, so that the hot-switch of textures works.
Fix inventory not being synced with GameData when purchasing an item, which caused the Teleporter to not work unless the save was reloaded.
Fix Mia's gift menu showing all items instead of only the giftable items.
Add Pet number to Pet Sweeper minigame.
Add border to Sexy Slides to make it easier to match.
Add gradient to Sexy Slides pictures to make it easier to match and avoid equal tiles.
Add "Update Available" notification when opening the game.
Fix boobjob accident of BE Lv.3 not showing scene graphics.
Fix emoji font being corrupted and causing other letters to show up with the hearts.
Fix typo on backseating Pet expression, causing missing texture.
Fix typos - Big thanks to Cleavage Romeo for reviewing it.