[quote=@babbysama]
Tentative interest, I'd like some more info on what we'd actually be doing
[/quote]

You'd be doing anything. You make a nation, and you do whatever that nation does to advance itself. You can try to form an intergalactic coalition to try and build up political power, be the military-centric war machine, produce goods and ship them to whoever you can find, whatever. 

There will be an 'Ancient' race that is an NPC type thing- jump gates leading between the galaxies allow access between the Milky Way and Andromeda. Too far for a regular FTL drive to make, after all.