Nightprowler is a sword & sorcery French roleplaying game in a urban setting.
Nightprowler characters are thieves trying to make a living in the cosmopolitan city of Samarande. The game universe is highly inspired by the books of Fritz Leiber and Robert Howard. Characters can be cutpurses, beggars, courtesans, burglars, assassins... all members of the criminal underground. Most scenarios have the character engage in criminal activities (either on their own or under some other party's orders) while trying to avoid law enforcement or running afoul of the powerful guilds of the city.
The game system is class and level-based, magic is restricted to NPCs and actions are resolved by rolling a d20 under the appropriate stat or skill.