I had a dream based on Grimnoir after playing it. Don't really know what made this game so engaging; I guess it's just an interesting story, deliberately filled with recognizable clichés but humane and absorbing. It would make a good TV series.
After exploring and interviewing witnesses, at the end of each chapter you are faced with a diagnostic puzzle (in the vein of When in Rome). These puzzles make you read the previous text carefully, searching for clues, and not just skim through the links - which, of course, adds to the experience and makes the game world more vivid in your imagination. The bestiary guidebook you are given is well-researched and, in addition to unavoidable vampires and basilisks, features some rather unusual monsters; I was pleased to see it starting with Alkonost, a lesser-known creature from Russian folklore.