Allowed Classes from books

All classes from D20 modern book except Field Scientist and Tech
- They’ve been replaced a class called Engineer that is essentially the two classes put together. When choosing the class, the player must differentiate whether the Engineer is a Steam or Electric based character. The unique feature this class gets is at 4th level, they get to build their chosen speciality with gravicite making more powerful items.

No magic classes are allowed.

Classes from D20 past –
Pilot – chose specialty of Flight or Ground. Take a minus when using skill on other speciality without feat.
Frontier Marshall
Gangster – would be similar to Gangs of New York where you’re more of a brawler like character.

Allowed Classes from books

Clockwork 1889 Impossiblephd