In Unsolved Crimes, the player assumes the role of a rookie detective at the Homicide Division of the New York Police Department in 1976. As the sister of your colleague has been kidnapped, you need to solve both that case and a number of others. In between the cases there are shooting and racing mini-games.
Solving a case is a matter of finding clues at the crime scene, which can be viewed in 3D. By moving the camera up and down, you can look under tables or on top of tall closets. Finding certain objects unlocks questions in the question list. These questions are a multiple choice quiz. Choosing the wrong answer results in a penalty, choosing the right answer will lead to a higher rank. This game is a combination of adventure, action and puzzle.