Is it possible to transition from one material to another in bge? I want to have different skydomes for different areas of my game world, but I'd prefer not to have them abruptly cut from one to the next. Is there a method to slowly introduce a new material, while the old one fades away? Thanks in advance! Any help is very much appreciated!
Create a new material and apply it to the dome, then enable Use Shader Nodes on this material.

Then open Node editor and add your 2 material nodes you want to interchange and  pass them through Mix RGB node. 

To switch between the materials animate the Mix Factor.