Age of Empires: War Chiefs
The success of Age of Empires III is universally acknowledged and for good reason. In its third showing, the gameplay refinement is clearly present along with new features that are integrated seamlessly. Adding an expansion pack was only a matter of time and although it took awhile, Age of Empires: War Chiefs has made its appearance. Expansion packs often go one of two ways. Either an entirely new gameplay feature is added, often to fix gameplay imbalances or slip in a feature that wasn't ready for the initial release, or new content is added without significant changes to the gameplay.
Age of Empires: War Chiefs falls into the second category which isn't a bad thing when the original gameplay is already well balanced and has depth. Does the new content justify another $30 however?
Probably depends on how much you enjoyed AoE III, but the new content does make a strong showing. Age of Empires: War Chiefs focuses around the addition of three Native American civilizations: the Aztecs, the Iroquois, and the Sioux. There are a few new building and features to take advantage of such as the fire pit which gives nice bonuses and a new victory condition based on trading monopolies but if you take the fresh coat of paint off, it's still the same basic game. Again, when the core game starts out as strong as AoE III, tinkering with the gameplay can cause more problems but Age of Empires: War Chiefs isn't going to offer an entirely new experience either. One aspect that helps to bring a new feel however is the campaign missions. As you might expect, the stories are told well and keep you pushing to see what happens next.
Other areas like the graphics and audio look similar to AoE III but the strength and longevity of Age of Empires: War Chiefs is likely in the multiplayer capabilities anyway. Bottom line is if you enjoyed AoE III, Age of Empires: War Chiefs has plenty new to justify a purchase.