Nightshade

The game takes place in a fictional urban city called Metro City. As the story unfolds, the city's local superhero named Vortex is outnumbered by gangs and killed. With the city's protector murdered, crime grows rapidly. With the city completely overrun by Sutekh and the other crime lords, vigilante Nightshade decides to step up and take the law into his own hands, vowing to rid Metro City of crime. (Wikipedia)