From publisher blurb:
curse the darkness uses an original game system based around playing cards. Unlike many RPGs, it doesn't have a skill list or a complicated system for resolving combat and other situations. Instead, players undertake two kinds of Challenge: Character and Removal.
A Character Challenge helps define the character, and resolves an action that doesn't carry a risk of death or removal from the story. Character Challenges are based on one of four Attributes, each corresponding to a suit of cards: Focus (Diamonds), Stability (Clubs), Stamina (Spades) and Humanity (Hearts).
A Removal Challenge happens when the characters enter a situation that might lead to one or more of them being taken out of the game. Removal Challenges aren't based on the four Attributes, but on the characters' actions within the context of the situation. Characters in curse the darkness can and do die, much more easily than in many other RPGs.