2. Discworld Noir
This has got to be one of the most underrated point and click adventures out there, further removed form the lime light on account of it never getting a release in the US. Discworld Noir offered a fantastic Noir pastiche in Terry Pratchet's renowned Discworld universe. It clearly tickled at a niche audience but, despite not offering particularly stimulating puzzles, it had plot, charm and production values to spare. It's never going to be on a top 10 list of adventure games, but it's still a must play titles for fans of the genre.