Rmaximus
I think I know how to make the game smaller in download size, and it shouldn't result in any loss in quality. I talked about it in my review I posted, but since this can improve the game for everyone trying to play it, I thought I'd elaborate here.
Of the 13.3GB of storage the game takes up, 13GB is exclusively for the 178 characters. I remember you tried shortening the videos in the past, so we'll look at the images. Recently, in order to reduce the size of the assets in my own game, I resized every image used to match the display resolution that would be used in the game. I didn't see the point in having 4k images when they would be shown on screen with a max width of 1000 pixels. The result, the game is half the size is was before (for context, it's only on its third update and has a cast of around 7).
So, what if we applied the same process to your game. As explained in the review, the "banner.jpg" image shown on the start screen displays at around 800 pixels in width (it varies depending on the device, my monitor is 1920x1080). The source image is over 2000 pixels in width. Any quality in the source image is compressed when displaying it, so why not set a specific display resolution, and resize the image to match. By resizing the banner image to match the display resolution, the file size goes from 580kb to 112kb, nearly a quarter of its existing size. If this was applied to every image in the game, optimising them for a specific display resolution, Gigabytes of data would be saved, making the game more accessible, and easier to download. Image quality wouldn't be affected, as the image quality is already being downscaled to match the display, and only those on 4k monitors would really notice the higher resolution of the images.
This is only an example, and by no means am I saying you should do this, only that this is one option that would solve one of the biggest issues with the game at present.