You can build new islands with one type of bomb and parts for a dragon with another type. Hold on, I will try and screenshot... You have to get the bombs by breeding dragons or buying with gold. Wonder what the drop rate for bombs is. I have my timer up in fifteen min so guess I'll find out.
Last edited by asyran2012; 12-18-13 at 10:57 PM.
You get bombs for evolving dragons as well. I just got three.
The mining looks like its from FS2.