ludology vs arts

ludology and arts both are nouns.

Word	Noun	Adjective	Verb	Adverb
ludology	Yes	No	No	No
arts	Yes	No	No	No

As nouns, arts is a hypernym of ludology; that is, arts is a word with a broader meaning than ludology:

ludology: The study of games and gaming, especially video games.
arts: studies intended to provide general knowledge and intellectual skills (rather than occupational or professional skills)

Other hypernyms of ludology include humanistic discipline, humanities, liberal arts.

ludology (noun)	arts (noun)
The study of games and gaming, especially video games.	studies intended to provide general knowledge and intellectual skills (rather than occupational or professional skills)