Let's start with the few good pooints in the game. The plot is a cliche mix of soap opera and cold-war tension, but is halfway decent. From the game's box: "Two star-crossed lovers hold the key to the survival of the human race. HE is a young general assigned to America's ultimate military space project, the Strategic Defense Initiative; SHE is a beautiful Russian commander hopelessly caught in the crossfire when ruthless KGB fanatics stage a coup d'etat in the Soviet Union. Can the young American save her? Can they, together, save the human race?" Uh-huh. Well, it's not Dr. Strangelove, but it's not bad.
Any positive first impression you have with S.D.I., however, will fade fast as you get into the game proper. There are three main phases: defending the U.S. against KGB missile attack, repair SDI satellites and dock with US and Space Stations in the same craft, and finally save your Russian lover from a KGB torture squad. The rescue operation is the most fun-- combining the best elements in shooters with Cinemaware's famous cinematic techniques. Unfortunately, you have to first endure the first two parts, which are very frustrating to play due to the awful red-green graphics in the IBM version. The 3D flight sim part is nearly unplayable due to poor and grainy graphics, not to mention impossible odds with enemy ships that appear constantly. My suggestion: play the Amiga version of this game instead, or Cinemaware's later classics. A good idea botched by technical limitations, so it seems.
Note: The game file is available for download with permission from Cinemaware, Inc. All Cinemaware game files are copyright (c) 1985-2000, Cinemaware, Inc. All rights reserved.