Key features for Sid Meier's Civilization VI: Gathering Storm include:

        ENVIRONMENTAL EFFECTS: Volcanoes, storms (blizzards, sand storms, tornados and hurricanes), climate change, floods and droughts will bring the world to life in a brand new way. Settlement choices are more important than ever for players as they balance high risks and high rewards;
        POWER AND CONSUMABLE RESOURCES: Strategic resources play an additional role in Civilization VI: Gathering Storm. These resources are now consumed in power plants to generate electricity for cities. Initially, players’ advanced buildings will be powered by burning carbon-based resources like Coal and Oil, but renewable energy sources also unlock as players progress to current-day technologies. The choices a player makes about resource usage will directly affect the world’s temperature and can cause melting ice caps and rising sea levels;
        ENGINEERING PROJECTS: Players can now shape the world around their empires to overcome unfavorable land conditions by making improvements like canals, dams, tunnels and railroads. When settling cities, players will need to consider the flood risk to coastal lowland areas, but keep in mind that in the late-game, new technologies like Flood Barriers can be used to protect these tiles;
        WORLD CONGRESS: For the first time in Civilization VI, players can make their voices heard among the other leaders of the world. Along the way, they can earn Diplomatic Favor through Alliances, influence city-states, compete in World Games and more. In addition, they can use Diplomatic Favor to extract promises from other leaders, vote on Resolutions, call a Special Session to address an emergency and increase the weight of votes in their quests to achieve the new Diplomatic Victory;
        21st CENTURY TECHNOLOGIES & CIVICS: A new era has been added to the Technology and Civics trees. As well, players will combat new environmental effects with speculative ideas, such as relocating their populations out to seasteads and developing technologies to recapture carbon emissions;
        NEW LEADERS AND CIVS: Nine new leaders from eight new civilizations are introduced. Each brings unique bonuses and gameplay, as well as a total of nine unique units, four unique buildings, three unique improvements, two unique districts and one unique governor;
        NEW SCENARIOS:
            The Black Death: The Black Death ravaged Europe and western Asia in the mid-14th century, killing a greater share of the population than any other event in world history. The player’s task is to lead his or her nation through the calamity: keep the population alive, the economy strong and faith unshaken amidst a world of terror and desperation;
            War Machine: At the outset of WWI, the German Imperial Army had a daring plan: invade neutral Belgium and then rush the French heartland before its leaders could mobilize to resist. When war was declared, both armies swung into motion and set up one of the most incredible and shocking military campaigns in world history. In this multiplayer scenario, players take the side of one of these two great powers at this same precipice. The clock is ticking, and the enemy is moving;
        MORE NEW CONTENT: Civilization VI: Gathering Storm will introduce seven new world wonders, seven natural wonders, 18 new units, 15 new improvements, nine new buildings, five new districts, two new city sets, nine new techs and 10 new civics;
        IMPROVED GAMEPLAY SYSTEMS: The Espionage system will be enhanced with new options. In addition, the Culture and Science Victories have been updated, new Historic Moments have been added and additional improvements have been made to other existing systems.