A cikin makon farko na wallafawa, Fallout 3 ya doke dukkan sassan Fallout da suka gabata, yana samar da tallace-tallace 57% mafi girma fiye da wasan farko na makon farko na Bethesda's The Elder Scrolls IV: Oblivion a shekara ta 2006. Daga fitowar ta a watan Oktoba zuwa karshen shekara ta 2008, an sayar da Fallout 3 sama da raka'a miliyan 4.7. A cewar NPD Group, a watan Janairun 2009, an sayar da nau'in Xbox 360 na raka'a miliyan 1.14, kuma an sayar da nau'in PlayStation 3 na raka'a 552,000.
3 da kuma