Kingdoms, Empires and Federation.

There are 5 grades for above mentioned

Grade 1 to 5

Grade 1 being highest and 5 being lowest.

Worlds

There are also 5 grades for world

1. High Order World (HOW)

2. Upper Middle World (UMW)

3. Middle Order World (MOW)

4. Lower Middle World (LMW)

5. Low Order World (LOW)

Currency

100 bronze coins = 1 silver coin

100 silver coins = 1 gold coin

100 gold coin = 1 black gold coin