When thirteen year old Rosalind tires of her mother's angst, she sets off to grandmother's house for good food and better company. But upon arriving, she finds an empty house, a half-twisted quilt, and a full-on mystery. Thus begins her quest through space, memory and a closet full of skeletons.

Moon-Shaped is a typical puzzle-based interactive fiction, save that it favors fuller prose over fuller geography. Puzzles are of moderate difficulty and clued fairly well, and a menu interface offers progressive hints.