Adults only (18+). Always confirm the details on the mod's own distribution page.

About this directory

This is a fan-made index, not a download site. Every entry links to the author's own repository — install from there, not from mirrors.

Descriptions are written with AI assistance and may be incomplete or out of date. The distribution page is always the authority.

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Last updated: · 74 mods listed

Results

74 mods found

Core & management

HF Patch

Easy

The standard all-in-one patch. Installs translations, fixes and the major plugins in a single pass.

Koikatsu / Party · by ManlyMarcoRequirements & notes: You must own the base game. Back it up before running the patch.
View on official GitHub ↗Check the readme and supported game version before downloading
Core & management

KKManager

Easy

External tool for managing and updating mods, plugins and character cards.

All titles · by IllusionModsRequirements & notes: Set the target game and folders on first launch.
View on official GitHub ↗Check the readme and supported game version before downloading
Core & management

BepInEx

Moderate

The core framework nearly every plugin needs in order to load.

All titles · by BepInExRequirements & notes: Use the BepInEx 5.x build that matches your game.
View on official GitHub ↗Check the readme and supported game version before downloading
Moderate

Shared API that per-game plugins build their common features on.

Koikatsu Sunshine · by IllusionModsRequirements & notes: Requires BepInEx. Download the file for your specific game.
View on official GitHub ↗Check the readme and supported game version before downloading
Core & management

BepisPlugins

Moderate

Plugin pack covering core features such as Sideloader and Screencap.

All titles · by IllusionModsRequirements & notes: Requires BepInEx. Pick the release matching your game.
View on official GitHub ↗Check the readme and supported game version before downloading
Core & management

IllusionFixes

Easy

Collection of patches for known problems in the games and in modded setups.

All titles · by IllusionModsRequirements & notes: Latest BepInEx and BepisPlugins recommended.
View on official GitHub ↗Check the readme and supported game version before downloading
Core & management

Sideloader

Moderate

Loads zipmod content without overwriting the game's own files.

Koikatsu / Party · by IllusionModsRequirements & notes: Requires BepInEx and BepisPlugins.
View on official GitHub ↗Check the readme and supported game version before downloading
Core & management

Configuration Manager

Easy

In-game screen for searching and changing plugin settings.

All titles · by BepInExRequirements & notes: Requires BepInEx. Usually opens with F1.
View on official GitHub ↗Check the readme and supported game version before downloading
Studio & creation

MaterialEditor

Advanced

Edits materials, textures and shaders in detail.

All titles · by IllusionModsRequirements & notes: Mind save file size and compatibility when sharing.
View on official GitHub ↗Check the readme and supported game version before downloading
Translation & text

XUnity AutoTranslator

Moderate

Loads translation files for in-game text and can machine-translate on the fly.

All titles · by bbepisRequirements & notes: Check which translation files and settings you are using.
View on official GitHub ↗Check the readme and supported game version before downloading
Studio & creation

Timeline

Advanced

Builds advanced animation on a timeline inside studio.

Koikatsu / Party · by joan6694Requirements & notes: Read the built-in help and check scene compatibility.
View on the HF Patch plugin list ↗Check the readme and supported game version before downloading
Core & management

ExtensibleSaveFormat

Moderate

Lets plugins store their own data inside character, coordinate and scene files.

All titles · by IllusionModsRequirements & notes: Anyone you share those cards with needs it as well.
View on official GitHub ↗Check the readme and supported game version before downloading
Character maker

MoreAccessories

Moderate

Raises the cap on how many accessory slots a character can use.

Koikatsu Sunshine · by jalil49Requirements & notes: Anyone you share cards with needs the same plugin.
View on official GitHub ↗Check the readme and supported game version before downloading
Character maker

ABMX

Advanced

Fine-grained bone tuning that widens the range of body shapes you can build.

All titles · by ManlyMarcoRequirements & notes: Mind card compatibility and extreme deformation.
View on official GitHub ↗Check the readme and supported game version before downloading
Character maker

UncensorSelector

Moderate

Chooses which uncensor each character uses. Selectable from the Body/General tab in the maker, with a default applied to characters that have none set.

All titles · by IllusionModsRequirements & notes: The uncensor itself is a separate download. Check the author's terms and the law where you live.
View on official GitHub ↗Check the readme and supported game version before downloading
Character maker

Skin Overlay Mod

Moderate

Layers custom textures onto the body, face, clothes and eyes.

All titles · by ManlyMarcoRequirements & notes: Check the Modding API and ExtensibleSaveFormat requirements.
View on official GitHub ↗Check the readme and supported game version before downloading
Capture & graphics

Screencap

Easy

Takes high-resolution screen and character screenshots.

All titles · by IllusionModsRequirements & notes: Check free disk space on the output folder.
View on official GitHub ↗Check the readme and supported game version before downloading
Studio & creation

NodesConstraints

Advanced

Constrains nodes to each other for complex motion and attachment.

Koikatsu / Party · by joan6694Requirements & notes: Modding API and some studio experience recommended.
View on the HF Patch plugin list ↗Check the readme and supported game version before downloading
Studio & creation

QuickAccessBox

Easy

Searches the huge studio item list and places items quickly.

Koikatsu / Party · by ManlyMarcoRequirements & notes: Check the shortcut key and what it searches.
View on official GitHub ↗Check the readme and supported game version before downloading
Character maker

SliderUnlocker

Easy

Lets character maker sliders move beyond their normal range.

All titles · by IllusionModsRequirements & notes: Extreme values can break how the model looks.
View on official GitHub ↗Check the readme and supported game version before downloading
UI & convenience

Autosave

Easy

Automatically saves studio scenes and character cards at a set interval.

Koikatsu / Party · by HF Patch contributorsRequirements & notes: Set the interval and the destination folder.
View on the HF Patch plugin list ↗Check the readme and supported game version before downloading
UI & convenience

KKUS

Easy

Adds usability improvements such as search fields to the maker and studio.

Koikatsu / Party · by joan6694Requirements & notes: Check the HF Patch bundled build or the author's notes.
View on the HF Patch plugin list ↗Check the readme and supported game version before downloading
Capture & graphics

VideoExport

Advanced

Recording feature for exporting video or GIF from studio.

Koikatsu / Party · by joan6694Requirements & notes: Check disk space and the export settings.
View on the HF Patch plugin list ↗Check the readme and supported game version before downloading
Capture & graphics

Light Settings

Advanced

Exposes extra light properties the stock UI does not offer.

Koikatsu / Party · by HF Patch contributorsRequirements & notes: Settings may overlap with other lighting mods.
View on the HF Patch plugin list ↗Check the readme and supported game version before downloading
Capture & graphics

Graphics Settings

Moderate

Adds more rendering options than the stock settings, for tuning quality against load.

Koikatsu / Party · by HF Patch contributorsRequirements & notes: Tune to match your PC's performance.
View on the HF Patch plugin list ↗Check the readme and supported game version before downloading
Character maker

Acc Mover

Moderate

Makes copying, moving and organising accessory slots much easier.

Koikatsu / Party · by HF Patch contributorsRequirements & notes: Pick the build for your game.
View on the HF Patch plugin list ↗Check the readme and supported game version before downloading
Studio & creation

FK and IK

Advanced

Lets you use FK and IK at the same time in studio.

Koikatsu / Party · by DeathWeasel1337Requirements & notes: For users already comfortable with pose editing.
View on official GitHub ↗Check the readme and supported game version before downloading
Gameplay

KK_Pregnancy

Moderate

Adds pregnancy mechanics and character maker options to the main game, including showing and changing risky days and the cycle.

Koikatsu / Party · by ManlyMarcoRequirements & notes: Can be disabled per character or globally in the settings.
View on official GitHub ↗Check the readme and supported game version before downloading
Studio & creation

PoseTools

Moderate

Improves pose folder management, PNG saving and saving of expressions.

Koikatsu Sunshine · by IllusionModsRequirements & notes: Check the per-game release and its prerequisites.
View on official GitHub ↗Check the readme and supported game version before downloading
Character maker

ClothingUnlocker

Easy

Removes some restrictions tied to gender and clothing combinations.

Koikatsu Sunshine · by IllusionModsRequirements & notes: Check prerequisites such as the Modding API.
View on official GitHub ↗Check the readme and supported game version before downloading
Character maker

ClothesToAccessories

Advanced

Lets ordinary clothes and hair be used as accessories.

All titles · by IllusionModsRequirements & notes: Check your MaterialEditor and Sideloader setup.
View on official GitHub ↗Check the readme and supported game version before downloading
Moderate

A bundle of main-game improvements, such as raising the school's character limit from 38 to 99.

Koikatsu / Party · by ManlyMarcoRequirements & notes: Affects main-game progression. Read what it changes before installing.
View on official GitHub ↗Check the readme and supported game version before downloading
Studio & creation

Mass Shader Editor

Advanced

Edits shader properties across many selected objects at once.

Koikatsu / Party · by HF Patch contributorsRequirements & notes: MaterialEditor and some shader knowledge recommended.
View on the HF Patch plugin list ↗Check the readme and supported game version before downloading
Studio & creation

AccessoriesToStudioItems

Moderate

Makes character accessories available as studio items.

All titles · by IllusionModsRequirements & notes: Check Sideloader and the Modding API.
View on official GitHub ↗Check the readme and supported game version before downloading
Capture & graphics

Force High Poly

Moderate

Uses the high-quality character models outside the maker too, such as in school scenes.

Koikatsu / Party · by DeathWeasel1337Requirements & notes: May increase load on your PC.
View on official GitHub ↗Check the readme and supported game version before downloading
Studio & creation

ObjectMap

Advanced

Makes studio maps editable like ordinary objects.

Koikatsu / Party · by HF Patch contributorsRequirements & notes: Check compatibility before saving the scene.
View on the HF Patch plugin list ↗Check the readme and supported game version before downloading
Character maker

DynamicBoneEditor

Moderate

Edits the Dynamic Bone (jiggle) behaviour of accessories from the character maker.

All titles · by IllusionModsRequirements & notes: Anyone you share cards with needs the same plugin.
View on official GitHub ↗Check the readme and supported game version before downloading
Easy

Links hair accessory colour to the hair, and adjusts gloss, outline and hair-tie colour separately. Also supports a length slider.

All titles · by IllusionModsRequirements & notes: Options only appear on accessories built to support it.
View on official GitHub ↗Check the readme and supported game version before downloading
Studio & creation

InvisibleBody

Easy

Hides only the character's body. Clothes, accessories and attached studio items stay visible.

All titles · by IllusionModsRequirements & notes: In studio, toggle it from Anim → Current State → Invisible Body.
View on official GitHub ↗Check the readme and supported game version before downloading
Capture & graphics

ColorCorrector

Moderate

Adjusts some post-processing effects such as bloom and saturation.

All titles · by IllusionModsRequirements & notes: Watch for overlap with other graphics plugins.
View on official GitHub ↗Check the readme and supported game version before downloading
Capture & graphics

LightShafts

Advanced

Adds volumetric light shaft effects to studio.

Koikatsu / Party · by RSkoiRequirements & notes: Check prerequisites such as Component Util.
View on official GitHub ↗Check the readme and supported game version before downloading
Character maker

Pushup

Easy

Sliders for breast shape while wearing a bra or top. Advanced mode allows fine tuning.

All titles · by IllusionModsRequirements & notes: Anyone you share cards with needs the same plugin.
View on official GitHub ↗Check the readme and supported game version before downloading
Studio & creation

Timeline Flow Control

Advanced

Adds simple control such as branching and limited loops to Timeline.

All titles · by IllusionModsRequirements & notes: Requires Timeline and the Modding API.
View on official GitHub ↗Check the readme and supported game version before downloading
Studio & creation

Better Scaling

Moderate

Improves scaling behaviour for studio folders and guide objects.

Koikatsu / Party · by HF Patch contributorsRequirements & notes: Check how existing scenes are affected.
View on the HF Patch plugin list ↗Check the readme and supported game version before downloading
Character maker

MoreOutfits

Easy

Increases how many coordinate slots a character can hold.

All titles · by IllusionModsRequirements & notes: Anyone you share cards with needs the same plugin.
View on official GitHub ↗Check the readme and supported game version before downloading
Studio & creation

StudioWindowResize

Easy

Widens studio selection windows so more items are visible at once.

Koikatsu Sunshine · by IllusionModsRequirements & notes: Check prerequisites such as the Modding API.
View on official GitHub ↗Check the readme and supported game version before downloading
Capture & graphics

OrthographicCamera

Moderate

Enables an orthographic camera in the game and in studio.

Koikatsu / Party · by ManlyMarcoRequirements & notes: Check the hotkeys and camera settings.
View on official GitHub ↗Check the readme and supported game version before downloading
Translation & text

Subtitles

Easy

Adds subtitles to dialogue, the character maker and more.

Koikatsu / Party · by DeathWeasel1337Requirements & notes: Check the translation quality and where it applies.
View on official GitHub ↗Check the readme and supported game version before downloading
Capture & graphics

LightingTweaks

Easy

Raises shadow resolution and fixes shadow strength differing between the main game and studio.

All titles · by IllusionModsRequirements & notes: May increase load on your PC.
View on official GitHub ↗Check the readme and supported game version before downloading
Character maker

HairShadowColorControl

Moderate

Makes hair shadow colour easier to adjust from the character maker.

All titles · by IllusionModsRequirements & notes: Requires MaterialEditor.
View on official GitHub ↗Check the readme and supported game version before downloading
Capture & graphics

LockOnPlugin

Easy

Lock-on camera that keeps following a chosen character.

Koikatsu / Party · by KeelhauledRequirements & notes: Do not reuse hotkeys already taken by other mods.
View on official GitHub ↗Check the readme and supported game version before downloading
Capture & graphics

SceneEffectExtended

Advanced

Exposes more scene effect and render settings in studio.

Koikatsu Sunshine · by krypto5863Requirements & notes: Check the per-game build and conflicts with graphics settings.
View on official GitHub ↗Check the readme and supported game version before downloading
Character maker

Accessory Clothes

Moderate

Helper plugin so certain add-on accessories load correctly.

Koikatsu / Party · by HF Patch contributorsRequirements & notes: Check what the card or clothing item asks for.
View on the HF Patch plugin list ↗Check the readme and supported game version before downloading
Studio & creation

StudioSceneSettings

Moderate

Adjusts more studio scene settings than stock. The settings are saved with the scene.

All titles · by IllusionModsRequirements & notes: Settings may overlap with other graphics mods.
View on official GitHub ↗Check the readme and supported game version before downloading
Character maker

Maker Defaults

Easy

Changes the character maker's starting settings to your own preferences.

Koikatsu / Party · by DeathWeasel1337Requirements & notes: Configure it from Configuration Manager.
View on official GitHub ↗Check the readme and supported game version before downloading
Studio & creation

Axis Unlocker

Moderate

Widens the setting range for gizmo speed and size.

Koikatsu / Party · by HF Patch contributorsRequirements & notes: Change values gradually when doing fine work.
View on the HF Patch plugin list ↗Check the readme and supported game version before downloading
Studio & creation

PictureInPicture

Advanced

Adds a small window in studio showing an image or another camera's preview.

Koikatsu / Party · by NiggoJaechaRequirements & notes: Studio only. Mind the extra rendering load.
View on official GitHub ↗Check the readme and supported game version before downloading
UI & convenience

ItemBlacklist

Easy

Right-click items in the character maker to hide them from the list. Useful for tidying away unused mod items.

All titles · by IllusionModsRequirements & notes: No prerequisites.
View on official GitHub ↗Check the readme and supported game version before downloading
Capture & graphics

StudioCameraObjectTweaks

Easy

Creates studio camera objects at the current camera view rather than at the cursor. Also hidden by default.

Koikatsu / Party · by ManlyMarcoRequirements & notes: The behaviour can be changed in the settings.
View on official GitHub ↗Check the readme and supported game version before downloading
Studio & creation

KKS Aligned Placement

Moderate

Helps place multiple studio objects at even intervals.

Koikatsu Sunshine · by AruiKashiwagiRequirements & notes: Check the Sunshine release specifically.
View on official GitHub ↗Check the readme and supported game version before downloading
Easy

Generates random characters inside the character maker.

Koikatsu Sunshine · by IllusionModsRequirements & notes: Review the generated result before saving.
View on official GitHub ↗Check the readme and supported game version before downloading
Translation & text

Translation Tools

Advanced

Tooling used to load and to author translation data.

All titles · by IllusionModsRequirements & notes: For normal use, the version bundled with HF Patch is recommended.
View on official GitHub ↗Check the readme and supported game version before downloading
UI & convenience

AccessoryQuickRemove

Easy

Press Delete in the character maker to remove an accessory quickly.

All titles · by IllusionModsRequirements & notes: No prerequisites.
View on official GitHub ↗Check the readme and supported game version before downloading
Gameplay

KK_MobAdder

Easy

Places background characters on story mode maps so they feel less empty. Decorative only — they neither move nor make sound.

Koikatsu / Party · by ManlyMarcoRequirements & notes: Can be disabled or recoloured from the game's settings screen.
View on official GitHub ↗Check the readme and supported game version before downloading
Gameplay

PantyFairy

Moderate

Adds an original side quest and related features to story mode.

Koikatsu Sunshine · by ManlyMarcoRequirements & notes: Requires the Modding API. Conflicts with the older PantyRobber.
View on official GitHub ↗Check the readme and supported game version before downloading
Dev & advanced

CharacterExport

Advanced

Exports the loaded character with Ctrl+E (rebindable). Used to pull models out of studio scenes.

All titles · by IllusionModsRequirements & notes: Assumes familiarity with external 3D software.
View on official GitHub ↗Check the readme and supported game version before downloading
UI & convenience

KK_WarpToCharacters

Easy

Adds a "go to this character" button to the roaming mode character list. Can also jump to the next event location.

Koikatsu / Party · by ManlyMarcoRequirements & notes: Successor to KK_MoveMapFromCharaList. Do not run both.
View on official GitHub ↗Check the readme and supported game version before downloading
UI & convenience

Map Screen Declutter

Moderate

Tidies the map selection screen so it is easier to read.

Koikatsu / Party · by KoikDaisyRequirements & notes: Check the target screen and the supported build.
View on official GitHub ↗Check the readme and supported game version before downloading
Dev & advanced

IllusionCheatTools

Advanced

In-game trainer for debugging and testing.

All titles · by ManlyMarcoRequirements & notes: Use it knowing that it affects normal play.
View on official GitHub ↗Check the readme and supported game version before downloading
Dev & advanced

Runtime Unity Editor

Advanced

Inspects and edits live Unity objects and components.

All titles · by ManlyMarcoRequirements & notes: For development and debugging. Careless edits can break your session.
View on official GitHub ↗Check the readme and supported game version before downloading
Easy

Adds new purchasable items with different effects to the shop. Some are sold only at night.

Koikatsu Sunshine · by ManlyMarcoRequirements & notes: Requires the latest BepInEx, BepisPlugins and KKSAPI.
View on official GitHub ↗Check the readme and supported game version before downloading
Advanced

Improves how alignment is handled in adult scenes.

Koikatsu / Party · by HF Patch contributorsRequirements & notes: Check the supported build and conflicts with other scene mods.
View on the HF Patch plugin list ↗Check the readme and supported game version before downloading
Capture & graphics

KK_NightDarkener

Easy

Makes night Free H maps closer to realistic darkness. The amount is configurable.

Koikatsu / Party · by ManlyMarcoRequirements & notes: Going too dark makes the scene hard to work with.
View on official GitHub ↗Check the readme and supported game version before downloading
External devices

LoveMachine

Advanced

Adds integration with supported external devices.

All titles · by SaucekeRequirements & notes: Check supported hardware, companion software and the safety notes.
View on official GitHub ↗Check the readme and supported game version before downloading
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Install safely

Modding is at your own risk. Always keep a backup, and download only from the author's own release page or a trusted official repository.

  • Check the supported game version and prerequisites
  • Do not add a large batch of mods at once
  • Never run unexpected executables