The universe is not one shared server but several parallel realms, each with its own map, commanders, alliances and speeds. You may hold one commander in each – alternate-reality doppelgangers of each other – and the name you fly under in one is tied to nothing in any other. It is what makes it possible to be a trusted officer in one galaxy while quietly reporting to a rival alliance in another.
A realm has speeds: build, production, research and fleet, each a multiplier set by the operator. It also has weather – realm events that temporarily change those speeds for everybody at once.
A realm is born closed and is opened to the public deliberately. Its season is the time it stands open, and it ends in the Hidden Sector.