Dragon Nest

Dragon Nest is an action role-playing game that incorporates elements of classic RPGssuch as Zelda, Grandia and even the Final Fantasy, a Japanese manga style graphicsattractive, and MMORPGs alike. It has a quickly-play style with a dynamic fighting combos and great visual impact. With third-person view, in combat you can switch to first person perspective. 
It can be played with keyboard and mouse or with Jostick.

As you saw the game is a hack & slash with air to Ragnarok Online (no variabilityobviously)

The game works with a system of "combos" so to speak, but not as the CABAL or othergames where you have to follow the sequence as default and press the same string of buttons forever.
The game is very fast and the number of movements that can be done, and magic skills, allow us to attack non-stop and in the sequence we pretend.

This type of non-stop combos is what, for me, diferences this game from all the others, because you can keep enemies or characters (PVP) bouncing off the floor unable to defend themselves.
Obviously that PVP is not as easy to keep the combo infinitely.

Each server has a number of channels, such as the world map, the Coliseum (PVP) with ladder system / equipment and other maps that have not yet come to explore.