Expansion packs are often built around themes. Sometimes it's a series of campaigns on a particular subject or a bunch of new units or perhaps an entire new race. Thrones & Patriots, on the other hand, doesn't bother with any of that nonsense. It appears the team at Big Huge Games looked at the original Rise of Nations and decided that if it ain't broke, don't fix it. They just threw a whole bunch of new stuff into the game, including new civilizations, new campaigns, and some new gameplay mechanics. In lesser hands, that could have turned into a random mishmash of unbalanced "features" that messed up a perfectly wonderful game. Thrones & Patriots, though, is a wonderful, well-integrated collection of additions that makes an incredible game even better.