It took quite a considerable amount of time to create this. 

I've written this many kanji characters.

It includes not only alphanumeric characters but also Japanese and Korean characters. 

Additionally, it includes (though not all) approximately 1,006 Chinese characters from learning levels 1 to 6. Furthermore, it also includes basic Chinese sentences and Easy-to-write characters.

Private Use area has game-like UI. Word. Language.  Brick.

Some characters may be slightly distorted, but that is an intentional design choice. "Many 10,000+ characters"