Video Games are a profoundly powerful tool for exploring history. Just look at the success of the Assassin's Creed series: Strip away the goofy "Assassins & Templars" frame, and you've got some really interesting, well realized settings to explore, and interacting with various historical figures is certainly cool. The interactive nature of games, particularly adventure games and first person shooters, allows the player to transplant themselves into the world, seeing history from a new perspective, experiencing it as it happens. That is, if the research and consulting is done well. But so few games actually take on history in an accurate way, particularly outside of the strategy genre, and strategy games only go so far, giving you a high-level, birds-eye view of the situation, rarely allowing you to actually explore a particular era. But that's beside the point.

Look at history games: Almost all of them revolve around WWII, Japan, the Crusades, the Middle Ages in Europe, and very occasionally the American West. What are some periods that you would love to experience as a video game? I mean a dream game, one that was historically accurate as possible, fun, and doesn't bat an eye at exploring the complex and often controversial events of the time? What would the game be like?

Personally, I'd love to see a game about the Rhodesian Bush War. Perhaps it might be a realistic military shooter like ARMA II, or something like Jagged Alliance or Silent Storm. Either way, I'd love to see the war from both the perspectives of the Rhodesian military and the ZANU/ZIPRA fighters, and explore the atrocities committed throughout that period by both sides, and maybe get a little bit into the higher-level, Cold War politicking that went on. African wars and Africa in general have largely been completely ignored by the media, and Rhodesia in particular is a case many would prefer to forget about. So, that's one of the many periods I would love to see as a game.

Everything between the fall of Rome and 867 / 1000 is pretty much unexplored, I think.

The American Civil War would make a great war game, as the bloodiest conflict in American history, as well as the first war in which modern technologies (rifled gun barrels, Gatling guns, etc.) were used.

There's been a number of those over the years. I remember playing one on my Apple II, and there was a Sid Meier Gettysburg game. Here's http://kotaku.com/this-is-strategy-gaming-just-not-as-you-know-it-1594618940 that's in development. (And in the tabletop & miniatures gaming world, there's been dozens of ACW games over the decades. But that's a different thing... )