World War 3
The worlds is at war and you have fight your way through every continent to survive. Start with just a pistol and march through the first continent of your choice. Along the way you will be able to use military vehicles to your advantage. Keep surviving and you will unlock cool weapons like AK-47, Bazooka, and grenades.
Use the A,W,D keys to walk and jump. Then use the mouse to aim and shoot. The E key lets you get in and out of vehicles and the R key is to reload your weapon.