Doom was one of the biggest shooting game ever since gaming started. With a gory and action feel theme for it, you will definitely feel nostalgic playing these shooting games. The same rules still apply with your grabbing weapons, armor and ammunitions to help you survive an onslaught of barraging enemies out to kill you. They will try to catch you off guard to try to sneak up from behind you so keep an eye out for peculiarities in the environment. The 2D feel lets you get back to the old times when it used to be quite simple, just lying there and shooting the brains out of each other.