The Blade Runner game is one of the all-time greats IMO. I was going to post that it finally became available on GOG.
A police procedural which can genuinely play differently every time, so there is a lot of millage there. How you speak to the characters, handle evidence and where you are and when will effect which of about 12 endings you get. It's not as simple as you choosing to act like a cold hard killer, or like a replicant sympathizer. The atmosphere, music, lighting and sound is spot on to the movie and the voice acting is great. You play a parallel story with the film's story going on in the background, it's similar enough but different enough to feel like you are experiencing the film but also doing your own thing. The graphics look dated but not as much as you'd expect after 20 years, that's more down to the resolution they had to render them at in '97 so PCs could cope, than the way they look. Highly recommended.
This is the best resolution I could find the trailer in:
There are screengrabs and an intro video here: