One of Paradox Interactive's newest games, Darkest Hour: A Hearts of Iron Game is set to be released under the “Europa Engine projects” label on March 29th and will see players taking place in conflicts spread from the outbreak of the Great War all the way up to the Cold War. Featuring a reworked AI which can react to hundreds of situations at once, this standalone Hearts of Iron II game is sure to please. Check out the trailer after the break.