Disclaimer: I was provided a review copy of the game free of charge.
Kuf is an occult investigative game with a system based on Knave. The player characters are aware that something is fundamentally wrong with "reality", and thus they are drawn into a frantic search for knowledge and power. In the postscript it is explained that the author intended to match seemingly opposite styles of gaming: modern day gnostic horror (like Kult) and old-school D&D (even if some would argue that Knave isn't exactly that, I guess it's close enough).