I'd say the answer is like any other genres. Easy to write slop, hard to write well. Xianxia might be even harder as it is heavily rooted in Chinese culture, Daoism, and a dash of Buddhism. You'd need to do quite a bit of research if you want to write a good one. You must also take note that lots of values can clash with a Western POV due to different cultures and traditions. Of course, it depends on how faithful you want to be to the genre.
I guess in most xianxia novels, you can treat it like a LitRPG, where the protagonist "levels up" and gets higher stats. In most xianxia (non-systems), your protagonist levels up from a basic cultivator to an immortal. They can join a sect or be a lone wolf.
As for the cultivation levels, I'm not too sure about the English names since I read in Chinese, but this is the most standardized translation I found:
- Qi Condensation
- Foundation
- Core Formation
- Nascant Soul
- Diety Transformation
- Spacial Tempering
- Body Integration
- Grand Ascension
- Transendant
Keep in mind, the level names can differ based on the novels.
An essential element of Daoism is Yin Yang, which is all about balance. Life, death, masculinity, femininity, hot, cold, violence, kindness... you name it. Lots of authors just write murder hobos and power fantasies in xianxia, forgetting that mercy and love are also core values. Hence why so much xianxia slop just reads the same.
These are just some basics I summed up for you. There's plenty more in the finer details, but I don't want to ramble too much. If you want to know more, you can message me. :)
Edit: here's a link I found that has a lot of helpful definitions and terms pertaining to the genre.
A glossary of terms which commonly appear in Wuxia, Xianxia & Xuanhuan novels. Table of Contents: Novel Categories Cosmology Beings & Creatures World of Martial Arts Martial Arts Cultivatio…
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