Story, characters, combat system, length/re-playability, not particularly in that order.
And subjectively good art and music, of course.
Bravely Default was the last one I played that scored high in these.
Gameplay, doesn't matter the genre (expect maybe stuff like Visual Novels, etc, where the gameplay can only really go one way). The first rule of designing a game is: Work out the gameplay mechanics, limitations, innovations, etc before anything else. It's cool and all to say "I've got this game idea, it's about a prince who discovers he has the bloodline of a goddess and goes on an epic quest to discover more god-blooded folk, unite the kingdoms, and defeat the armies of the dreaded Demon King", but if I ask "so what's the gameplay like?" and you reply "...I 'unno.", you're going to have a lot of trouble making something good.
I'd like to think that most people play RPG's for the sake of a decent story, so I'll go with that. Solid game-play is also very important but I can tolerate clunky and dated mechanics if there's a brilliant story waiting to be uncovered.
Story/Plot is first, characters is second.
It's why Dragon Age Origins and Mass Effect are some of the best RPGs ever made.
The Witcher 2 brings a lot from both, but I can't help but feel that Geralt is the center of the universe. The rest are just sidekicks.
Garrus was awesome on his own. He didn't need Shepard to shine.
Really good story, with amazing character development. This includes all characters, including villains.
Which is why I still really enjoy a lot of the classic SNES RPGs. Final Fantasy 6 and Chrono Trigger being my favorite because they both have a great story with amazing character development. Chrono Trigger at the time also had a really great combat system. Final Fantasy 6 not so much, but it was good enough and the story and characters by far made up for any small short comings in that game.
Something I feel that's missing from modern day RPGs is actual great sound tracks. Ones the just pour out emotion. Even though the sound quality was sub-par on the SNES, it's hard to dispute the power of the music/sound they made for games around the SNES era of RPGs.
On the other hand I can't help but love a game like Divinity Original Sin, despite not meeting what I consider important in an RPG. The story and characters themselves aren't all that interesting, but the combat is incredibly fun and propels the game forward.
player choice
that will make or break an RPG, story is a close second with game play a very close 3rd.
Player choice is why I loved Mass effect, elder scrolls, fall out, etc.
Last edited by GennGreymane; 2014-07-29 at 03:24 PM.
Immersion and graphics/animation quality.. gameplay too.
I wouldnt play anything thats severely lacking in any of those categories so I guess theyre all important.