Civilization 6 will get eight new Civilizations and nine new Leaders in the upcoming Gathering Storm expansion, along with some big changes to its core systems and a major late-game challenge to deal with in the form of man-made climate change. A new trailer released today showcases how it will all come together, from early-game difficulties with the environment to randomized 21st-century Technology and Civics trees in the new "Future Era." 

Disasters aren't necessarily all bad. Volcanoes are inherently risky to build around for obvious reasons, but volcanic soil is extremely fertile; flooding rivers can wash away village improvements, but you may also see increased food yields when the floodwaters recede. Some of them, like grassland tornadoes, are bad news all around, while others will apparently have civ-specific benefits: Blizzards are tremendously destructive, but can also confer some "nice benefits" if you happen to be playing as Russia.

Strategic resources will be divided into Fuel, which will be of particular importance once you his the Industrial Era, and Material. Unpowered buildings in Industrial (and beyond) cities will produce less than half their normal yield, and military units lacking the requisite Fuel and Material will be weaker in the field. The flipside of that new feature is that using some fuel types will release carbon dioxide into the air, driving up global temperatures—climate change—and leading to "unique consequences including increased storms or flooding, and rising sea levels." 

Green technologies can help alleviate the impact of climate change (careful with those nukes, though), and if you can make it into the new Future Era you'll have the opportunity to make friends and influence people (and maybe save the world) through the World Congress, and advance through the randomized 21st-century Technology and Civics trees. 

Civilization 6: Gathering Storm comes out on February 14. If you haven't already met them yet, here's Corvinus, Laurier, Kristina, Suleiman, and Dido. 

Fraser said last week that the addition of Sweden to Civilization 6 in the Gathering Storm expansion will be just the thing for players who prefer cultural or diplomatic victories over the more traditional route of violent imperialism. If, on the other hand, violent imperialism is really your bag, then allow me to introduce Suleiman the Magnificent, head honcho of the Ottoman Empire. 

Suleiman's unique ability is Grand Vizier, which unlocks a new governor named Ibrahim. A potential "major player in diplomacy," Ibrahim has his own promotion tree, is the only governor who can be established in another civilization, and is available only to Suleiman. The unique Ottman building is the Grand Bazaar, which replaces the Bank in commercial hubs and adds extra amenities and strategic resources in cities where it's placed. 

The Janissary, a replacement for the Musketman, is Suleiman's unique unit: It's stronger and cheaper to build than a Musketman and starts with a free promotion, but consumes a population point from the city it's trained—unless it's raised in a conquered city. Make use of that knowledge as you see fit. The Ottomans also have access to the Barbary Corsair, a unique replacement for the Privateer that becomes available earlier in the game and does not incur a movement cost when conducting coastal raids. 

The unique Ottoman ability is Great Turkish Bombard, which enables them to construct siege units much more quickly than other civilizations and grants them additional combat strength. Conquered cities do not lose population, and will also gain amenity and loyalty bonuses while under Ottoman control. 

If war is your thing, then, it sounds like Suleiman could be your guy. Civilization 6: Gathering Storm is set to come out on February 14. It will also include Hungary, Canada, and catastrophic climate change.