2400 A.D.

The player is an ordinary citizen who lives in the futuristic city Metropolis. The city has been conquered, and its population enslaved by an alien race known as Tzorgs. They have sent robots to maintain order in Metropolis, turning it into a police state. There are rumors of an underground resistance movement, but finding the resistance is dangerous, and being caught by the robots will lead to being thrown in prison... (wikipedia.org)