When I was in junior high I went over to my friends house and played this computer game all the time but I can't remember the name

Here is what I can remember

-It was for PC Windows/Dos
-It came out in or before 1996
-It is an isometric game that consisted of a guy going room to room solving puzzles, avoiding lazers, etc
-The setting was in the modern day or perhaps the future
-I remember the graphics being very blueish and dark,

That's really all I can think of. Since there aren't that many isometric PC games, hopefully this will narrow it down.