What is this MMORPG?
When you first start, you are in a desert, and eventually make it to an ancient tomb type area. A while after that you get to the main city where there are different districts. You can get riding pets and you have the ability to upgrade them, as well as regular pets. One of the most memorable thing in my opinion are that there are boss types of creatures that are huge, like you would have a fish that you could easily kill, then there would be like a legendary fish that would be 15 times bigger. Sorry if this is very vague of a description, I haven't played it in a long time and would like to find out the name of it again.