Fangoria concludes, "I mean it in a good way when I say that you don’t stop watching FRANKENSTEIN’S ARMY once the end credits roll; you escape it." Moria has a positive review. TwitchFilm closes with this: "while the film has a literally shaky start, the finale had the audience intentionally in stitches. And I hope Raaphorst will get the chance to make a few more of these, as his imagination obviously goes beyond the scope of what was possible in this single film."
Roger Ebert's site says, "The filmmakers were bold in their choices of period and format, but not patient enough to do right by them." Rotten Tomatoes has a critics score of 67% and an audience rating of 39%.