15 Secret Levels In Video Games You Don’t Know Exist

Duke Nukem 3D – Area 51

Wander into the hidden government compound and eviscerate some alien pigs. Duke visits the area in order to hunt down and kill the Alien Queen. But getting to the extraterrestrial royalty is a difficult enough challenge in itself. It has a different look and feel to it, making it feel alien and familiar at the same time as Duke storms through its narrow halls.