World Zero, its a fun fantasy game that a lot of players enjoy. But you may have some questions so read along and it could answer your questions!

First of all there are worlds and each world has diffrent quests and if you comp1ete al of the quests you can move on to the next world. Each world also has dungens which are a part of some quests or it can be used to grind. Classes give diffrent types of perks. For example a mage can use magic and a duel weilder can duel weild swords. You can unlock them with tickets and you can earn that from completign all your quests in a world.

Pets are earned from eggs which you can buy from a shop or from killing creaters. Feed an egg and it will gain xp, with 50 xp (or how much the egg needs) you can hatch it. From there you can level up your pet 10 levels so you can evolve it and you can keep doing it until you can not evolve it any more. Pets give you another power.

Well thats all you need to know, now go in an adventure!