The final DLC of Civilization V freshens up the title's stale gameplay by adding nine extra civilizations, an improved trading system, eight wonders, and even more ways to rule the world.
Equal footing: In the Brave New World expansion, conquest isn't the only way to win -- other winning conditions are now more viable. Tourism allows culture-based civilizations to influence their neighbors, and trade routes can spread religion, giving you extra leverage over warlike neighbors at the World Congress.
Enhanced core gameplay: Brave New World brings core elements of other DLCs (such as Gods & Kings), as well as a few of its own, expanding the main mechanics of the game. Features like religion, trade, espionage, and the World Congress make you adapt to survive while giving you the freedom to win with your own strategy.
Smarter AI: Computer opponents have been improved to take advantage of the various winning conditions. AI civilizations and city-states have been retooled for long-term planning, making it easier for you to build and maintain diplomatic relationships.
Slower pacing: More options to win means you must plan carefully to carry out your strategies. This expansion of core play also affects AI opponents, prolonging the game. Brave New World slows down the overall experience of Civilization, especially during the endgame.
Brave New World brings Civilization V back to its roots -- the game feels completely different than the first release. Fans can rejoice at the return of flexible gameplay. Early game turns aren't as crucial, allowing you to adapt to the changing environment and switch gears later on to obtain victory. This is a more calculating iteration of Civilization, very much like its predecessors.
From Firaxis Games:
Sid Meier's Civilization V: Brave New World provides new depth and replayability through the introduction of international trade and a focus on culture and diplomacy. The player's influence around the world will be impacted by creating a number of Great Works across a variety of crafts, choosing an ideology for their civilization, and proposing global resolutions in the new World Congress. As players move through the ages of history, they will make critical decisions that influence relationships with all civilizations in the game world.