The game Hanoi 12 Days and Nights is developed by Pirex Games. The game takes the theme of Revolutionary war. Hanoi 12 Days and Nights is shown with the aim of recreating a part of the battle of Dien Bien Phu in the air - a fierce battle of the Hanoi people against the strategic ambush by B-52 aircraft of the US imperialists. at the end of December 1972, forcing the US Government to sign the Paris Agreement to bring peace in North Vietnam.