Older versions put on Mod Database to continue old saves.

There are also new government mechanics where you can interact with other subfactions and story events in new ways, along with a planet loyalty system, giving extra income, unique units, and other bonuses at high levels, but with other negative effects if your member worlds become too unhappy with your leadership.

In Empire at War: Expanded, the traditional Empire at War tech level is traded for an era-based system that impacts different story events, factions, unit rosters and heroes are available, with the galaxy set up to recreate various conflicts within the Star Wars Legends lore. Non-Playable Factions: (Aligned with the CIS or Republic) The Separatist droid armies threaten to overrun the Republic and no matter who comes out on top, the course of galactic history will be altered forever. Palpatine's machinations and the decay of the Republic have brought the galaxy into the most destructive war it's ever seen.