Dead Space combines two really great things: The 'Alien' movies and System Shock. Dead Space is one of the most intense games i know. You might pee in your pants a little. Careful with Dead Space 2 and these sequels look much more main-streamy.
This concept art is for a game called Dead Space. It is incredibly detailed on the suit the character is wearing. The light is position behind the character, making his suit to look darker and more threatening. The mask is lit up by a glow of blue light.