At the start of World War Two, Games was conscripted into the British Army. He served until 1941 when he was approached by the Public Relations Department of the War Office who were looking for a graphic designer to produce a recruitment poster for the Royal Armoured Corps. From 1942 Games's service as the Official War Artist for posters resulted in 100 or so posters. Games was allowed a great deal of artistic freedom which enabled him to produce many striking images, often with surrealist elements. Among his first designs was the Auxiliary Territorial Service recruitment poster that became known as the "blonde bombshell". Games had wanted to challenge the rather drab image of the ATS but the authorities feared that the glamorous image he had produced would encourage young women to join the ATS for the "wrong reasons" and the poster was quickly withdrawn. The design Games replaced it with was criticised by Winston Churchill as being too "Soviet".