"A Mind Forever Voyaging."
This was an odd little text adventure by Infogrames, in which you played as Perry Simm, a citizen of America of the future. Perry was your ordinary guy with an ordinary job, an ordinary wife, and an ordinary kid. He also didn't exist.
Perry was actually PRISM, a highly sophisticated AI program developed as a social simulation. The PRISM project's goal was to evaluate political and social policies by creating a simulation of their effects years down the line. PRISM was created to be an observer: an AI raised from childhood in a simulated environment designed to be as close to a real human as possible.
The first half of the game involves PRISM going into simulations 5, 10, 15, and 20 years from now to evaluate the effects of the government's proposed new social policy: this is more sandbox mode, walking around, seeing the sights, recording interesting data for the scientists. The second half is when it really kicks up: the government decides that the results of the PRISM project are too dangerous to be made public, and take steps to silence the scientists and unplug you. You have to fight back. . . but you're just a computer, so how? The solution involves several steps, including hacking into the traffic control system to delay the cops, breaking into the secure data vault to get the study results and spread them across the internet, and getting into the building environmental systems to take out the soldiers.
Fun game, I would love to see it remade with modern graphics and interface.