DOFUS is a top down 2.5D MMORPG along with turn-based combat with a unique and astonishing cartoon/anime artstyle.
Choose one of the 19 unique classes and work towards leveling up by diving into thousands of quests by interacting with NPCs for various storylines, getting achievements for doing various activities, simply fighting monsters from hundreds of different monster families or defeating bosses in dungeons with other people.
Each class has 4 elemental characteristic paths and 42 unique spells that are unlocked as you level up, as well as thousands of items for stat bonuses and fashion to choose from.
Items are crafted by professions using resources dropped from monsters, gathered by other professions or obtained via other means. There are also marketplaces that are all linked together for everyone to sell/buy anything.
The main thing when starting, don't be shy to join a guild to get help and learn about the game! You can find one via the guild interface by pressing the g key.