“Diplomacy is Not an Option manages to blend elements of tower defense, Command & Conquer's fast-paced action, and resource management without ever feeling overwhelming. I love that I never have to pause in the middle of a fight to worry about tax statutes or which of my spouses is secretly sleeping with the nobles behind my back.” PC Gamer
“Diplomacy Is Not An Option is a compelling little game with short-lived appeal for super serious strategy fans, but one with loads of character and entertaining physics.” Rock, Paper and Shotgun
“While not the most innovative in its genre, Diplomacy is Not An Option takes a solid focus on traditional tower defense and wave-survival city building, challenging you to manage resources and build a mighty castle to survive against huge, statistically varied hordes of enemies.” 9/10 – Try Hard