Koikatu/Technical Help - Revision history

APX2600: Added more technical information regarding Windows

2024-09-16T22:05:40Z

Added more technical information regarding Windows

Wakor at 03:40, 20 January 2023

2023-01-20T03:40:13Z

MarC0: fix link

2022-10-18T06:41:25Z

fix link

MarC0: /* Issues installing and starting the game */

2022-08-15T01:26:43Z

‎Issues installing and starting the game

MarC0: /* Main game / Character maker FAQS */

2022-01-11T12:44:25Z

‎Main game / Character maker FAQS

MarC0: /* Main game / Character maker FAQS */

2022-01-11T12:39:57Z

‎Main game / Character maker FAQS

MarC0: /* Main game / Character maker FAQS */

2022-01-10T20:43:14Z

‎Main game / Character maker FAQS

MarC0: Sync with kks faq

2021-12-20T21:27:54Z

Sync with kks faq

MarC0: Sync with faqs channel

2021-12-20T20:01:57Z

Sync with faqs channel

Show changes

MarC0: minor updates

2021-09-12T13:44:49Z

minor updates

@@ Line 14: / Line 14: @@
 * '''Q : How do I manually install updates and DLCs?'''<br>A : (Japanese release) Unpacking the paid DLC (the afterschool DLC) must be done in Japanese locale, either by setting your machine to it, or via a locale emulator. Unpacking the Xmas update should work in any locale. Once unpacked, you should see a folder named setup. Copy and paste the contents of the setup folder over your game folder, and overwrite. First install both paid expansions, then latest game patch, then yoyaku/darkness.<br>If you have the game on Steam you don't need to do anything special, just install any DLC you want from your library.<br>'''Warning:''' After manually updating the game you will probably have to reinstall HF Patch if you use it. You also need to reinstall HF Patch when Steam updates your KK Party and after you add or remove DLC.
 * '''Q : What is a Koisona?'''<br>A : Koisona was coined on the Koikatsu Discord server to mean yourself made in the game.
-* '''Q : What versions of Windows will Koikatsu run on?'''<br>A : Koikatsu will only run on 64 bit versions of Windows 7 and above due to the use of DirectX 11 graphics API. If you have a 64-bit processor but are running the 32-bit version of Windows, you will need to switch to 64-bit Windows.
+* '''Q : What versions of Windows will Koikatsu run on?'''<br>A : It runs on Windows 7 64-bit and newer, but it will also work on Windows Vista 64-bit with Service Pack 2 installed as it supports DirectX 11.0. It will not run on 32-bit versions of Windows or under other 3D APIs such as Vulkan, OpenGL, or older versions of DirectX. Using an unsupported 3D API such as DirectX 9.0c to play the game will result in a never-ending pink screen, which happens on Windows XP 64-bit (x64). If you have a 64-bit processor but are running the 32-bit version of Windows, you will need to switch to 64-bit Windows.
 * '''Q : Do I have to use a locale emulator or change my system locale?'''<br>A : You don't have to do anything with system locale to run the game (might only apply to modded games). You might need to use a locale emulator or change system locale to install/extract the Japanese release and updates, however.
 * '''Q : Does Koikatsu require Steam to be running or the game DVD image to be inserted in order to play?'''<br>A : No, Koikatsu doesn't have any DRM so you can play the game without Steam started or the DVD inserted. If you run the game .exe directly then Steam will not show you as playing the game.
@@ Line 117: / Line 117: @@
 * '''Q : I got a broken character shoulder in the Maker, How do I fix it?'''<br>A : This is caused by incompatibility between Stiletto and MakerOptimizations plugins. Press F1, go to Plugin Setting on top right, Disable the "Disable Maker IK" on there and restart the game. This setting should automatically get disabled if Stiletto is detected in latest versions.
 * '''Q : I broken eyes with KKVMDPlayPlugin after updating the game?'''<br>A : This is caused by a bug in VMD plugin in versions not updated for Darkness/Yoyaku. To fix this go to your BepInEx/config.ini file, find the [VMDPlay] section, and change the CacheGagEyesTexture setting to False.
 = Studio FAQs =

@@ Line 29: / Line 29: @@
 * '''Q : My game hangs on start after installing mods!'''<br>A : Wait for a while, first start after installing mods can take a long time, especially if the game is installed to a slow HDD. If you want to see loading progress you can turn on system console in the BepInEx/config/BepInEx.cfg file.
 * '''Q : My maker starts very slowly!'''<br>A : Normally it varies between PC specs too, can took around 40-50 secs for average PC. Make sure you run the latest BepInEx and plugins, also check if you don't have too many cards in the root of character folders as it is also has impact in maker load times. You can put them in subfolders instead and use the browser folders plugin found here : https://github.com/ManlyMarco/KK_BrowserFolders/releases . Putting the game on SSD will also help to cut the load time a bit.
-* '''Q : Mods/translations aren't loading!'''<br>A : Try moving the game to a simple directory like "D:\Games\KK", special characters in the game path or very long paths can cause issues.
+* '''Q : Mods/translations aren't loading!'''<br>A : Try moving the game to a simple directory like "D:\Games\KK", special characters in the game path or very long paths can cause issues. If you're running under Wine on Linux, make sure you've added the winhttp DLL override (see https://github.com/Mantas-2155X/illusion-wine-guide/blob/master/parts/setup-wineprefix.md)
 * '''Q : Title screen is partially black or has missing options, why?'''<br>A : This can be caused by KK Party being updated by Steam. Install the latest hf patch, or reinstall the special patch manually. When you're done, go to KK Party properties in your steam library and turn off automatic updates to prevent this from happening in the future.
 * '''Q : The game won't launch with WINE/Proton on Linux, what do I do?'''<br>A : Run Koikatu.exe directly instead of a launcher.

@@ Line 48: / Line 48: @@
 ** #card-sharing channel on the Koikatsu Discord server
 ** In-game network option (only works for unmodded games, your IP needs to be located in Japan)
-** https://db.bepis.io/koikatsu
+** https://db.bepis.moe/koikatsu
 ** https://kenzato.uk/booru/category/KK
 ** https://illusioncards.booru.org/index.php?page=post&s=list&tags=koikatsu

@@ Line 31: / Line 31: @@
 * '''Q : Mods/translations aren't loading!'''<br>A : Try moving the game to a simple directory like "D:\Games\KK", special characters in the game path or very long paths can cause issues.
 * '''Q : Title screen is partially black or has missing options, why?'''<br>A : This can be caused by KK Party being updated by Steam. Install the latest hf patch, or reinstall the special patch manually. When you're done, go to KK Party properties in your steam library and turn off automatic updates to prevent this from happening in the future.
-* '''Q : The game won't launch with WINE on Linux, what do I do?'''<br>A : Run Koikatu.exe directly instead of a launcher.
+* '''Q : The game won't launch with WINE/Proton on Linux, what do I do?'''<br>A : Run Koikatu.exe directly instead of a launcher.
-* '''Q : The game runs in WINE, but no mods/translations will load. How do I fix it?'''<br>A : Run 'winecfg' in a terminal. Select the Libraries tab. Under "New override for library:" type or select "winhttp (native,bulitin)". Add it, and hit Apply & OK.
+* '''Q : The game runs in WINE/Proton, but no mods/translations will load. How do I fix it?'''<br>A : Run 'winecfg' in a terminal. Select the Libraries tab. Under "New override for library:" type or select "winhttp (native,bulitin)". Add it, and hit Apply & OK. For more info check https://github.com/Mantas-2155X/illusion-wine-guide and https://docs.bepinex.dev/articles/advanced/proton_wine.html
 * '''Q : Gray boxes are missing text/are empty when the game is run with WINE, how do I fix it?'''<br>A : Run 'winetricks corefonts' in a terminal. You need to have winetricks installed.

@@ Line 55: / Line 55: @@
 * '''Q : Why I can't connect to the servers to check out/download characters through ingame menus?'''<br>A : The official server blocks non JP ips. There was a mirror server for westerners, but it's been down for months now, most likely forever.
 * '''Q : My maker starts very slowly!'''<br>A : Normally it varies between PC specs too, can took around 40-50 secs for average PC. Make sure you run the latest BepInEx, BepisPlugins and IllusionFixes. Also check if you don't have too many cards in the root of character folders as it is also can impact maker load times. Putting the game on SSD will also help to cut the load time a bit.
-* '''Q : Story mode starts very slowly or has bad performance! (low FPS / lags / stutter)'''<br>A : Try reducing the maximum number of characters loaded (you can do it in the NPC list or in game settings). Turn off the "force high poly" setting in plugin settings to let the game use lower quality character models (might cause graphical issues with characters using modded items). Putting the game on SSD will reduce load time a bit but it won't affect FPS and stutter.
+* '''Q : Story mode starts very slowly or has bad performance! (low FPS / lags / stutter)'''<br>A : Try reducing the maximum number of characters loaded (you can do it in the NPC list or in game settings). Turn off the "force high poly" setting in plugin settings to let the game use lower quality character models (might cause graphical issues with characters using modded items). Putting the game on SSD will reduce load time a bit but it won't affect FPS and stutter. Make sure your IllusionFixes are fully updated to reduce stutter and improve FPS.
 * '''Q : The card I downloaded isn't loaded correctly?'''<br>A : This usually means you don't have the correct mods for the card, it's hard to determine which mods the creator use so to save your time you can download either latest HF Patch (link above). Alternatively, you can manually update modpacks from game launcher > Update (assuming your game is already modded). If after updating the card still does not load correctly it might have been made in old version of the game or with conflicting hardmods. In either case you will most likely need to fix the card yourself in character maker.
 * '''Q : How do I take a screenshot?'''<br>A : Take a screenshot with background by using F9, and a transparent background shot with F11. To change the settings for better screenshots and see more features search for "Screenshot" in Plugin settings window (press F1). Screenshots are by default created inside \Userdata\cap
 * '''Q : My card/scene isn't loading, what should I do?'''<br>A : You might have a thumbnail of the card with the character info stripped out. This can happen when posting the card on some websites and on Discord - make sure that you download the original png file (on discord click the "Open Original" button). Check if the card/scene you are using is a .png and about the same size as the cards/scenes you have that do load (if not, it might be missing the character data). If it has a logo, it is most likely a screenshot. Make sure you have your game updated to the latest version too.

@@ Line 41: / Line 41: @@
 * '''Q : How do I save the game?'''<br>A : You can save the game at the end of each day in your room, and only there.
 * '''Q : How do I end the day quickly?'''<br>A : Press Middle mouse Button and click Home Icon to end the day and go to your room.
 * '''Q : What are Character cards?'''<br>A : Character cards are special images in the format .png that contains data from the character to be loaded in the game. With this system you can pick up character from internet and load on your game and vice versa. Put cards in the appropriate UserData folder. '''Note''': Be sure to download the original card image file, not a miniature or a photo of a card, otherwise it will not work!
 * '''Q : Where do I place character cards?'''<br>A : \Userdata\Chara\male or female
@@ Line 54: / Line 55: @@
 * '''Q : Why I can't connect to the servers to check out/download characters through ingame menus?'''<br>A : The official server blocks non JP ips. There was a mirror server for westerners, but it's been down for months now, most likely forever.
 * '''Q : My maker starts very slowly!'''<br>A : Normally it varies between PC specs too, can took around 40-50 secs for average PC. Make sure you run the latest BepInEx, BepisPlugins and IllusionFixes. Also check if you don't have too many cards in the root of character folders as it is also can impact maker load times. Putting the game on SSD will also help to cut the load time a bit.
 * '''Q : The card I downloaded isn't loaded correctly?'''<br>A : This usually means you don't have the correct mods for the card, it's hard to determine which mods the creator use so to save your time you can download either latest HF Patch (link above). Alternatively, you can manually update modpacks from game launcher > Update (assuming your game is already modded). If after updating the card still does not load correctly it might have been made in old version of the game or with conflicting hardmods. In either case you will most likely need to fix the card yourself in character maker.
 * '''Q : How do I take a screenshot?'''<br>A : Take a screenshot with background by using F9, and a transparent background shot with F11. To change the settings for better screenshots and see more features search for "Screenshot" in Plugin settings window (press F1). Screenshots are by default created inside \Userdata\cap

@@ Line 37: / Line 37: @@
 = Main game / Character maker FAQS =
 * '''Q : Are there any official manuals?'''<br>A : To check thein game manual, press F5. It covers a lot of the gameplay. There is also a separate manual inside your game directory, you can open it through the game launcher.
 * '''Q : How do I save the game?'''<br>A : You can save the game at the end of each day in your room, and only there.
 * '''Q : How do I end the day quickly?'''<br>A : Press Middle mouse Button and click Home Icon to end the day and go to your room.
@@ Line 42: / Line 44: @@
 * '''Q : Where do I place character cards?'''<br>A : \Userdata\Chara\male or female
 * '''Q : Do Koikatsu Sunshine cards work on Koikatsu?'''<br>A : No, KK Sunshine can load KK cards but not the other way around.
 * '''Q : Where can I get more girls cards?'''<br>A : Other than the built-in network share feature there are many sites that share cards. Here's a brief list:
 ** #card-sharing channel on the Koikatsu Discord server

@@ Line 39: / Line 39: @@
 * '''Q : How do I save the game?'''<br>A : You can save the game at the end of each day in your room, and only there.
 * '''Q : How do I end the day quickly?'''<br>A : Press Middle mouse Button and click Home Icon to end the day and go to your room.
-* '''Q : Where do I place character cards?'''<br>A : Koikatsu\Userdata\Chara\male or female
+* '''Q : What are Character cards?'''<br>A : Character cards are special images in the format .png that contains data from the character to be loaded in the game. With this system you can pick up character from internet and load on your game and vice versa. Put cards in the appropriate UserData folder. '''Note''': Be sure to download the original card image file, not a miniature or a photo of a card, otherwise it will not work!
 * '''Q : Where can I get more girls cards?'''<br>A : Other than the built-in network share feature there are many sites that share cards. Here's a brief list:
 ** #card-sharing channel on the Koikatsu Discord server
@@ Line 48: / Line 51: @@
 ** https://yuki-portal.com/uploader/koikatu/ (Japanese)
 ** '''WARNING''': These sites have cards for lots of games, be sure to download cards for Koikatsu! (Koikatsu Sunshine or EmotionCreators cards won't work)
 * '''Q : How do I take a screenshot?'''<br>A : Take a screenshot with background by using F9, and a transparent background shot with F11. To change the settings for better screenshots and see more features search for "Screenshot" in Plugin settings window (press F1). Screenshots are by default created inside \Userdata\cap
 * '''Q : My card/scene isn't loading, what should I do?'''<br>A : You might have a thumbnail of the card with the character info stripped out. This can happen when posting the card on some websites and on Discord - make sure that you download the original png file (on discord click the "Open Original" button). Check if the card/scene you are using is a .png and about the same size as the cards/scenes you have that do load (if not, it might be missing the character data). If it has a logo, it is most likely a screenshot. Make sure you have your game updated to the latest version too.
-* '''Q : The card I downloaded isn't loaded correctly?'''<br>A : This usually means you don't have the correct mods for the card, it's hard to determine which mods the creator use so to save your time you can download either latest HF Patch (link above). Alternatively, you can manually install the Anon11's [https://mega.nz/#F!upYGBTAZ!S1lMalC33LYEditk7GwzgQ!HhZGHarJ Sideloader Modpack] and latest [https://github.com/DeathWeasel1337/KK_Plugins KK_GUID Migration] (refer to Modding FAQs below for more info for installing mods manually). If after updating the card still does not load correctly it might have been made in old version of the game or with conflicting hardmods. In either case you will most likely need to fix the card yourself in character maker.
+* '''Q : The card I downloaded isn't loaded correctly?'''<br>A : This usually means you don't have the correct mods for the card, it's hard to determine which mods the creator use so to save your time you can download either latest HF Patch (link above). Alternatively, you can manually install the Sideloader Modpack through KKManager (refer to Modding FAQs below for more info for installing mods manually). If after updating the card still does not load correctly it might have been made in old version of the game or with conflicting hardmods. In either case you will most likely need to fix the card yourself in character maker.
 * '''Q : The character I downloaded has really high/low voice pitch, what happened?'''<br>A : This could mean the card is created before slider unlocker was fixed for voice pitches outside of 0-100 range People put the sliders outside of the range but before the actual value was clipped to the normal range, now it works "as expected"
 * '''Q : Why I can't connect to the servers to check out/download characters through ingame menus?'''<br>A : The official server blocks non Japanese IPs. There was a mirror server for westerners, but it's been down for months now, most likely forever.
 * '''Q : My character's skirt is acting weird in character maker (boxy/sticking out corners)! Is this normal?'''<br>A : Skirt issues can happen when you set your character hips slider too thin, (usually below 0), you need to test to see what the exact limit is (or wear pants instead). Skirt issues can also be caused by outdated BetterPenetration, make sure you are using the latest version.
 * '''Q : How can I change the height of my male character?'''<br>A : There is no way to change the male height without using the ABMX plugin, but be advised that changing male height commonly leads to breaking certain animations.
 * '''Q : My game crashes every time this cutscene finishes/at the same point at the start of the day!'''<br>A : Certain badly configured mods don't handle loading into cutscenes properly and will crash the game. Get latest version of IllusionFixes to fix this.
 * '''Q : My game freezes whenever I add certain girls to my class. What's causing it?'''<br>A : This is probably caused by the girls using a modded personality. These modded personalities can only be used in Free H, and will break the story mode. Get latest version of IllusionFixes to fix this.
-* '''Q : My menu UI is messed up, what do I do?'''<br>A : It might be time to update your UI translation. Get the latest HF Patch to fix it automatically.
+* '''Q : My menu UI is messed up, what do I do?'''<br>A : Your UI translation might be outdated. get the latest HF Patch to fix it automatically. Check if your game resolution / window size is in 16:9 aspect ratio.
-* '''Q : Why is the translation so poor? / Why did the translation get so bad all of a sudden?'''<br>A : The vast majority of the translation is done automatically through Google translate, rather than a human (especially if you have an old modpack). Get the latest HF Patch to make sure you have the latest translations.
+* '''Q : Why is the translation so poor? / Why did the translation get so bad all of a sudden?'''<br>A : The vast majority of the translation is done automatically through machine translations, rather than a human. If you don't use a translation pack then you will get even worse translations since a worse machine translation service will be used. Get the latest HF Patch to make sure you have the latest translations.
 * '''Q : How do I unlock all the H animations without having to play the game?'''<br>A : Assuming you have CheatTools installed, press the Pause key and look for the unlock settings in the left window.
 * '''Q : How do I access the new date locations?'''<br>A : These locations will unlock after multiple regular dates beforehand. Once they do, continue to raise your affection stats by using the new locations, and inviting the girl home/to a hotel afterwards. More locations will unlock the higher your affection gets - and at higher affection, each location has a love event. Trigger all 4 love event to unlock the church.
@@ Line 67: / Line 74: @@
 * '''Q : Duh! I accidentally made my waifu refuse anal on creation and after I do a lot of grinding with her without knowing. Will she give up soon?'''<br>A : Don't worry, friend. Max out her other things beside anal teasing and anal penetration, after 1-2 periods or the next day, she'll let you do her anal play. But before you can penetrate her anal, you must max out anal teasing first. That way you will able to create your nympho waifu (who refuses anal play at first). Visit H Guide section. <br>Additional note: even if at first anal is not available, later on it will become selectable for caressing. After a few more H sessions it will become possible to insert as well.
 * '''Q : How to grind fast for her sensitive parts?'''<br>A : Look for Special H locations (library, pool, rooftop) you can get her addicted fast without having her exhausted for each school period. Having her cum outside the special H locations counted as a total (4 cums in total), she will be exhausted and no longer feel horny in having "intimate relationship" thus receiving less exp on maxing the circles. You will still need to normally H her to grind for anal-piston, cumming together inside anal twice increase the anal-piston by 45%. With Afterschool update you can increase H exp gains at the bottom of the settings.
-* '''Q : How to get quickly around the map? (e.g. avoiding horny girls)'''<br>A : Press F3 to instantly access any locations. With Afterschool update you can disable girls bothering thanks to new options at the bottom of the settings.
+* '''Q : How to get quickly around the map? (e.g. avoiding horny girls)'''<br>A : Press F3 to instantly access any locations. You can disable girls bothering you with options at the bottom of the settings (available since AfterSchool update).
 * '''Q : If I change her chest size (or butt, or fatness.., or height) while she's already in my class, will the dialogue change if she asks for her size?'''<br>A : Yes! It will change. Make sure to answer accordingly (I like it big for big chest.. etc.) Cherish! Banzai!
 * '''Q : Sometimes this annoys me, How to maintain her Nympho state?'''<br>A : At least talk to her once in a school period, and cum a lot (cumming together once is a must), don't worry about making her tired, her nympho power is limitless*. The after-dialogue will guarantee maintains her horny state. Remember, after a total of 4 cums**, she won't feel horny anymore, so you can at least have sex twice in a school period (1-2 cums on first sex, infinite cums on second sex) with the intent on maintaining nympho state. But in some rare cases, cumming twice may decrease her horniness (.. so if you invite her home, don't hold back, fill her up in every nook and cranny). For extra caution, you can save up some chat interactions so you can interact with her later by touching her just in case her horniness drop. Also note, finishing activities together like lunch, study, exercise, and date will also lower their horniness by 1. (H=99) For more info about H, visit H Guide wiki section.
@@ Line 99: / Line 106: @@
 * '''Q : Where do I place zips and zipmods? How are they different from hard mods?'''<br>A : Zipmods, or any zip with a manifest.xml in it, are specifically for the use of the Sideloader, and belong in a mods folder in the game directory. Please create a mods folder if not already present, and do not extract zipmods unless you know what you are doing! If you have a zip file, check if it has a manifest.xml file inside of it, if it doesn't then it is not a zipmod and does '''not''' go inside the mods folder!
 * '''Q : Where do I place plugins / dll files?'''<br>A : Most plugins are made for BepInEx 5.x and go inside the BepInEx\plugins folder in your game directory. If you don't have it, you have to install BepInEx and BepisPlugins first.<br>Some plugins (mostly from Japanese makers) might be made for IPA - an obsoleted mod launcher - you will need the IPALoaderX plugin to use these. Usually the download page will mention if a plugin is for IPA, otherwise it's most likely a normal BepInEx plugin.<br>Some old plugins might be made for BepInEx 4.x - in that case you will need the BepInEx4Upgrader plugin.
-* '''Q : Is there any recommended plugin? Where do I get this useful plugin?'''<br>A : Check the mod release channels on the Koikatsu discord server. At the moment, it's recommend to get mandatory core plugins that basically everyone uses to be able to load shared characters and scenes, which is : BepisPlugins, IllusionFixes, KKAPI (framework for modded UI), KKABMX, KSOX, MoreAccessories, KK_GUID_Migration, and KKPE. You can automatically install all of the recommended plugins and mods by getting HF Patch, which is recommended for beginners over manually installing separate mods.
+* '''Q : Are there any recommended plugins? Where do I get this useful plugin?'''<br>A : Check the mod release channels on the Koikatsu discord server. At the moment, it's recommend to get mandatory core plugins that basically everyone uses to be able to load shared characters and scenes, which is : BepisPlugins, IllusionFixes, KKAPI (framework for modded UI), KKABMX, KSOX, MoreAccessories, KK_GUID_Migration, and KKPE. You can automatically install all of the recommended plugins and mods by getting HF Patch, which is recommended for beginners over manually installing separate mods.
 * '''Q : Where do I put Overlays?'''<br>A : You don't need to put them anywhere specific (as long as they aren't in a .zip/rar etc). When you press load overlay, it will open a Windows Explorer window and you can navigate to the file yourself. Then, the overlay gets saved to the card data, so you don't need to keep a copy of the overlay after saving (unless you want to reuse it).
-* '''Q : Is there a way to load male character on female maker or vice versa?'''<br>A : You can use Drag and Drop Plugin by Marco here : https://github.com/ManlyMarco/KoikatuDragAndDrop/releases. Drag a Male card from your windows explorer and drop it into the game while female maker is running, windowed mode recommended. The reverse is just the same process.
+* '''Q : Is there a way to load male character on female maker or vice versa?'''<br>A : You can use the Drag and Drop plugin. Drag a Male card from your windows explorer and drop it into the game while female maker is running, windowed mode recommended. The reverse is just the same process.
 * '''Q : Where do I find a POV mod?'''<br>A : Get RealPOV from https://github.com/IllusionMods/KeelPlugins.
 * '''Q : Why is KKVMDPlayPlugin not working?'''<br>A : Check if it is in the BepinEx folder, and that FaceData.txt and a vmd file are in the KKVMDPlayPlugin folder. It will not run otherwise.

@@ Line 6: / Line 6: @@
 * '''Q : Where can I buy the game?'''<br>A : The game is available in English on Steam (with DLC): https://store.steampowered.com/app/1073440/__Koikatsu_Party/ <br>The Japanese release and DLC can be bought here: https://www.illu-member.jp/shop/products/detail.php?product_id=183 or here https://dlsoft.dmm.co.jp/list/article=maker/id=30012/
 * '''Q : What is the difference between the Steam and original Japanese releases?'''<br>A : The original Japanese release is called Koikatu! and is only intended for the Japanese market. Steam release is called Koikatsu Party (KKP) and is very similar to the Japanese version pre-darkness (assuming that the Special Patch that unlocks features is installed). All DLC older than Darkness and Yoyaku are available in English as the "AfterParty" DLC on Steam (The JP DLC can also be installed to KK Party, in that case only abdata folder has to be copied, and when asked to replace files you should select No to all).
 * '''Q : What is Paid DLC? Where to download it?'''<br>A : Paid DLC, refers to expansion packs that have to be bought separately. There are currently two expansion available for purchase: Additional personality summer expansion (adds 3 new personalities and some clothes) and After School expansion DLC (it adds new features like new dating system and 3P sex). They can be bought here https://www.illu-member.jp/shop/products/detail.php?product_id=199 and here https://www.illu-member.jp/shop/products/detail.php?product_id=192 <br>Both of these expansions were localized as the AfterParty DLC, you can buy it from your Steam library.
 * '''Q : Can I install Japanese paid DLC to the Steam version?'''<br>A : All Japanese DLC older than Darkness and Yoyaku can all be installed to the English version (only abdata folder has to be copied, and when asked to replace files you should select No to all). That being said, '''you should get the AfterParty DLC instead'''. It contains all DLC compatible with Party at a lower price and with English and Chinese translations.