OHHHH...another one.....it was called "Sleuth" and was just a simple floorplan of rooms. You used the arrow buttons to "walk" through the house. You looked for a murder weapon, a bloodstain on the floor and someone who lied about their location. Then you assembled the people in the room with the bloodstain and accused the person. But be careful.....if you take to long, the killer will be stalking you!.

I played that game for hours and hours.