Gameplay
There are more than 20 classes that you can choose to play. Whatever your playstyle is, you will find a class that suits you the best.
A lot of dungeons are also available to be challenged. There are more than 10 weekly dungeons, and many more story related instances for you to enjoy.
Graphics & Music
Very charming graphic. The style are easy to look at, characters design is very variative and the scenery is gorgeous, especially the latest map (Tears of the Ancient Kingdom)
Music is good and very memorable (my favorite was 7 royal ending theme).
Story
I enjoyed the stories of Ragnarok M. It's not what I initially expected for a game like this: a simple happy story where the good guy always wins. On the contrary, the story can get quite dark at times. Sacrifices have to be made, the endings are not always happy ending for the main characters for each story.
There are currently more than 15 main stories available, each with multiple chapters and possibly unique mechanics on their own. Not to mention exclusive stories for each special Hero Classes. Overall a very enjoyable story to go through.