2. Doom II (1994)

A sequel to Doom didn’t need to reinvent the wheel. Instead, Doom II smartly tweaks a few things and adds just enough to create a better game. Doom II adds some new enemies, like the bastardly Heavy Weapon Dude, and adds the glorious Super Shotgun. Can one additional gun really improve a game that much? Most guns can’t. The Super Shotgun ain’t like most guns. It, plus the improved enemy variety, make Doom II the better game. But not the best Doom game.