Not really historically accurate...
But still fun. Just a little background: Nickolas Tesla was Croatian, which, at the time of WWI, was a part of Austria, which was Germany's ally. Besides, Tesla was a U.S. citizen long before WWI started and died before the end of WWII. But the game still entertained me, so I guess its not really a big deal.
And also, @ Narhethi, You do know the game ends after day 20, right?