>>96062311
>Is it worth looking at quests in RPGs like oblivion
yes
>advice on how to run non-dungeon crawl adventures that have complexity, aren't predictable and have multiple equally decent choices?
this isn't necessary to implement. have an idea in mind, a goal for the players, things you want them to interact with or discover, but stay flexible.

the trick is not to write (or even plan out) a whole adventure, just to get enough things in your mind and prepared to last you till the next session (or a bit further). keep your main ideas in mind and try to figure out how you can guide your players towards them.

>My problem is the only adventures I can come up with are - 'Party has to go retrieve the jewel ring for the mayor of the city in the goblin caves.' How do I get good at making this more exciting?
add shit. is mayor good or evil? are there only goblins in the caves? does someone else want the jewel ring? does someone else want the caves? i guarantee you that most people are nowhere near as picky about the structure of a campaign.

>>96063798
>Read books.
this but all media. books, movies, wikipedia, comics, paintings.