Well, for those of you who do not play it here is a summary I put together
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Age of empires 3 is a strategy game, taking place in the 17 hundreds. You can do campaign or skirmish. You have 8 civilasations to choose from- British, Ottoman, French, German, Russian, Dutch, Spanish and Portugueese. Each civilization has its weeknesses and strengths. For instance, the Ottoman empire has the best cannon in the game, while the British have the best musketeers. The British also invented the rocket, so they are the only ones who can manufacture rockets. The Germans have the best hand infantry in the game, but the french are the only ones that have the best calvery in the game. There are 5 ages, discovery, colonial, fortress, industrail and Imperial ages. To age up, you need to have a certant amount of resources. For instance, to age up to the colonial age, you need 800 food, but to age up to the fortress age, you need 1200 food and 1000 coin. While you thrive to age up faster thann everyone else, you must balance defence, economy and military. The reason to age up is that there will be more military units and upgrades availible to you.