The number of fonts that cover the whole Unicode character set is zero, as the Unicode character set grows faster than fonts are designed for obscure scripts.

The number of fonts that cover the whole Unicode character set is zero, as the Unicode character set grows faster than fonts are designed for obscure scripts. The fonts that come closest are Google's Noto Sans (an Android-esque font that covers every script that's realistically in use), GNU Unifont (a monospaced raster font, great for multilingual coding), and Arial (bringing standardized mediocrity to the whole world). These projects put a lot of work into finding one visual style that works across many different scripts. I doubt you will find anything that works with a parameterized range of visual styles across different scripts. However, if you narrow your scope to fonts that just cover Chinese characters, I believe I've seen some projects that parameterize how to draw the strokes. I doubt the output will be neatly packaged in a TTF file.