The Maze
It describes itself, it's a long maze, where you might not reach the end in a few minutes. There are multiple sections (8) and the higher the section you are, the farther you are. However, there are many paths, so even if you reach the 5th area, you might have made a wrong turn in the beginning.
Darkfire Nation
A large network of cities in challenging mode. You can buy a premade house (with resources) or buy a plot of land. There is a jobs board so you can gain resources from the bank if you complete these everyday tasks.