DIY Hack Make your own Custom Koi Patterns for Zen Koi [Image Heavy Thread]

sisterskeeper · August 27, 2016

This tutorial was written to show people how to make their own custom Zen Koi patterns and apply them to the Koi in the game. For those that do not wish to do the work themselves, I will be eventually uploading a game file with custom patterns for every regular koi in the game, then another file with image replacements for every koi in the game, including the promotional koi. If you have requests, feel free to PM me and I will see what I can do.

So first, I am going to show you this cheat in action.

This fish here is a red and black unmodified Sutato Koi.

This is one of my own Sutato, modified with a custom pattern.

Now, all this tutorial does is change the image of your koi. It does not change the name of the color, or what the koi will look like once it ascends to a dragon. I have yet to figure out how to do that, but wanted to get this up. I will add to it should I figure out how to change the name, and dragon image.

That said if you wish to do this you will need the following.

- I-Funbox or some other way to switch the files on your device with the new files

- A graphics program capable of handling a layered .psd file and saving to .png

- This file here. It is a PSD to preserve the layers, but will be saved as a .png

- Zen Koi installed on your I-device

I will be using paint.net to demonstrate this, but the basic concept should remain no matter what program you use. In this tutorial I will be replacing the design of the Bux Koi with another Koi pattern.

0. Back up your zen Koi app! You will be replacing some of the game files with files of your own and while this should not mess with your save game, the backup will help you recover without having to reinstall should something go wrong!

1. Open the PSD you just downloaded. You have four layers. The top layer, Scale Overlay will give you a rough idea of what your final pattern will look like. The next layer, Mask, will give you an idea of where your pattern lies on the fish. The next layer, Pattern, it hte one you will be modifying. The bottom layer, Background, is there to provide a background for your image.

2. If you haven't already, set your brush color to red. The hexcodes, RGB and HSV values are shown in the picture above. This will match the color of the patterns in the other files in the game.

3. Erase the pattern shown so that you have a blank canvas to work with. The layer called pattern should be blank, as shown above.

4. Draw your own pattern in red to replace it. I went with a celtic knot theme. It does not matter if you go over the lines, only what is seen in red will be visible, like my fish shown above.

5. Delete every layer but your pattern layer.

6. Go into I-funbox and check the file name of the pattern you with to replace. The way to find it is illustrated above, but the path is zenkoi.app/bitmaps/2x or zenkoi.app/bitmaps/1x . The file I am replacing is called Skin01.png

7. In the folder you wish to save you custom koi in, create two folders. Name one "1x" and name the other "2x". This will make transferring the files easier.

8. Save your file with the exact file name of the file you want replace in the folder you just created and named "2x". Do not close the image!

9. Resize your image so it is half the size it was. The new image dimensions will be 149x51

10. Save it with the same file name as before, but in the 1x folder. You want it in a different folder so that you don't overwrite the old one but wind up with two copies of the same image, with the same filename but with one half the size of the other.

11. Copy your 1x and 2x folders into the bitmap folder you checked before. This will overwrite the original artwork for the Bux. Did I mention you should back up your app before you do this?

12. Check your work!

13. Start the Zen Koi app and admire your new fish.