Netcromancer Ch. 1 is the first part of a coming series of visual novels containing mystery and sci fi elements. It is also basically an ostentatious conversation simulator for people who like robots and dead wives.
It features: lots of options for no real reason but some down home, real as raisins, fake deep sci filosphy.
About half an hour of gameplay for one runthrough, but multiple options and playthoughs could easily double that with enough gumption and time on your hands.