Question about links .blend

I wonder and there ulgum mode to create a game that way, the .blend would have a main menu where you could choose the character you would like to play (which would be in one .blend external) and the scenes with the maps (stages) where the character would play and where enemies and other things would be.

is possible to do this a link .blend with another .blend? say that there would be master .blend and others that would .blend secondary characters that could be chosen to play

if it is possible that someone could provide one .blend as an example?

sorry for my bad english, thanks

Yes, you can link blends together. You do that by linking groups from another blend file. Look for yoFrankie’s VideoTutorial on Library linking. It shows yu how this works and how to use this for level editing.