Indigo Prophecy (Fahrenheit in PAL) is an adventure game where you start out controlling Lucas Kane. You start out in the bathroom of a diner in New York City, and you see Lucas cutting his arms. He then attacks and kills another man in the bathroom.

This is were you take control of Lucas, and every choice you make from here on out affects the game and the story. Will you hide the corpse? Do you storm out of the diner?

All of these choices affect how the game will unfold, and also the overall story of the game is affected to a degree.

There are many choices throughout the game, which will continuesly impact how the game unfolds before you, and this offers great replay value, in that you can have very different playthroughs of the game.