Simplified vs traditional is a different issue, and all dialects can be written in either simplified or traditional. Which is more prevalent usually depends on tradition, and relations with the PRC. Singapore and the PRC use simplified, while Taiwan, HK, and Japanese Kanji use traditional.
You meant that there are only less than 100 novels written in Romanian? If yes, that's one of the most absurd claims I've read in my life.
[1]https://translate.googleusercontent.com/translate_c?depth=2&...
It’s much more similar to the sistuation with Arabic where the various “dialects” are as distinct from each other as the Romance languages, i.e. French, Spanish, Italian etc. but the only written standard is Modern Standard Arabic. Mandarin or something close to it is at least someone’s native tongue. MSA is about as close to Maghrebi or Mashreqi Arabic as Latin is to Portuguese or Romanian.
For example, 火, the character for fire, is a (slightly) stylized brushstroke picture of a fire.
Mutually unintelligible communications that use the same pictures are distinct languages, but there are political implications to acknowledging this, so they’re “dialects”. As the saying goes, a language is a dialect with an army and a navy.
If you want to learn more the Wikipedia article is a great place to start.