D-Day Defender, a free online Shooting game brought to you by Armor Games. D-Day: June 6, 1944, 6:30 am. 160,000 allied infantry troops are approaching the coasts of Normandy to conduct the largest amphibious landing in history. There you are, a lone soldier in a turret. How long can you hold them off? Pro-Tips: - Fire at groups of enemies for better efficiency. - Vehicles explode, time those well so you take out a couple of soldiers as well. - Gun overheated? Reload while you wait!