Early hands-on previews of Civilization VI came out Thursday, and those who had a chance to partake in the turn-based PC game found that it successfully built on the foundation of the past versions, while bringing some fresh changes to the experience. It has been 25 years since the Sid Meier classic debuted to great acclaim, and after 2010's Civilization V raised the bar, it seemed that developer Firaxis would have to pull out all the stops with the next iteration.