Most expansion packs are disappointing, and until now the Civilization ones were no exception. They add a few new units, a few new civilizations, and maybe a concept or two. Although "Beyond the Sword" does all of this, it does a lot more. The additions--corporations that grow and develop, random events that affect relations and growth, a new espionage system that puts teeth back into spies--change the strategy of the game, adding complications and nuances throughout. This is especially good when all of the territories have been claimed. Before this pack, late gameplay was the least interesting part. Now, it is just as enjoyable as the rest of the game. There are also little things that I've enjoyed. Building wonders has always been a great part of Civilization, and now there are many more. New military units, like anti-tank infantry, guided missiles, and paratroopers, add new strategic possibilities to war, and personally, I really like the new animations for the spaceship. The only thing a little disappointing is that they couldn't get Leonard Nimoy to read the script for the new technologies. I don't know who the new guy is, but compared to Nimoy, he sounds pretty lame. You won't be disappointed with this expansion pack. After playing this at my house a few nights ago, a friend of mine went home and ordered his own copy immediately. If you're a fan of the Civilization series, I suggest that you do the same.