In 'Sister-Snoop', you play as Max, a mischievous older brother who decides to sneak into his younger sister's room while she's napping. As you explore her space, you uncover secrets ranging from embarrassing childhood artifacts to mysterious journals filled with her quirky adventures. Interact with items, make choices that impact the unfolding narrative, and decide whether to play pranks, reveal truths, or leave well enough alone. With humor and drama, you navigate the sibling relationship dynamics, ultimately determining if your bond strengthens or if chaos ensues.