Although a linear fare, the game contains alternative solutions for many puzzles, and even optional puzzles that don't need to be solved, but add to the game experience. There are also many innovations in the game that will make you feel like a real spy: you can hide from view to eavesdrop on (and record) incriminating conversations, threaten suspects or try to bluff them for information, ambush someone then hide the body afterwards, and much more. Gameplay mostly involves choosing the right thing to say to different characters, as well an as efficient usage of your time – the clock ticks mercilessly, and important events may go by without your knowledge. This makes KGB a difficult game, since you can get irrevocably stuck after realizing that you missed an important event or clues earlier. It's not unreasonably difficult though, because you are always told your objectives in each mission quite clearly by your superiors. Overall, this is a must-play for all fans of spy stories. Two thumbs up!

Note: Cryo later released the game on CD-ROM and renamed it Conspiracy. This version features identical gameplay but with (horrible) video clips of your character's father giving advice, played by Donald Sutherland.