Jeremy of The Daily Rotation wrote, "Who in their right mind thought making an alien invasion movie with energy sucking orange aliens was a good idea? Also, setting it in Moscow for no apparent reason and casting a string of so-so actors, each providing dull and lifeless performances. The Darkest Hour sparks no lights in the brain, instead its tedious and lacking any kinetic filmmaking. I’m not sure what studios were thinking when they gave director Chris Gorak all of their money. Even the trailers smelt of a dud, but somehow the film got made, just barely."