Hunterra Island - Hint 2

You have 3 main areas, the surface, the caverns and the lost city. Each of these areas contains 3 sub-areas.

On the surface you have the northern, the south-western and the eastern island. Each of the island is home to a specific monster race. Each race is designed for a specific level.

It is the same with the caverns. You can access different areas of the caverns from one of the entrances found on the surface. Each island has entrances to another area with other monsters. But the caverns areas are interconnected, so it is possible to change from one to another.

In the caverns you find the entrances to the lost city. The city is mostly in ruin but separated into three parts by the remains of the city walls. Each part of the city is claimed by a different monster race that protects its domain fiercely.