Age of Empires IV Announced!

Yesterday, Microsoft released a teaser for the latest installment of its long-dormant series. Following the success of Age of Empire II HD Edition and its various expansions, it looks like the franchise is back in the minds of classic RTS fans. All we have to go on is this teaser – which doesn't show any game footage, just concept art. Which is in itself pretty telling, as the art features civilizations from all throughout history and everywhere in the world – Ancient Greece, feudal Japan, the Colonial era, etc. I guess we'll see what comes next!