Worldbuilding Checklist (in general)
What is the predominant religion or lack thereof, and why? What other religions are practiced here?
What is the government? Is it a monarchy, dictatorship, etc., and why is it that way?
What are the public holidays? What holidays aren't public but are still widely celebrated?
How is the climate? What unique forms of nature can be found here?
What species of animal are native to here? Do invasive species exist here, and if so, which species?
Which laws are heavily enforced here, if any, and which are less enforced (if not at all)?
What is considered a socially acceptable form of dress here? What do the subjects usually wear?
What traits tend to be valued over others by people here?
What is the dating culture like? How does this impact the people here, and society overall?
What currency is used, and how did it come to be this way?
What is considered socially unacceptable or taboo, and why?
What is the biggest threat to this place? Could this threat ever be taken care of?
What hobbies are very popular amongst people in this world?
Are there any unique proverbs / idioms / sayings used in the language(s) here?
What kind of music is generally enjoyed by the people here?
What is the education like in general? Is it free, accessible, and good for the children? What types of schools/institutes exist here?