Hollow Knight: Silksong follows Hornet, the fierce princess-protector of Hallownest, as she is captured and taken to the mysterious kingdom of Pharloom. Forced to ascend through a vast land woven with ancient ruins, haunted forests, glittering citadels, and deadly machinery, Hornet battles powerful foes while uncovering the secrets behind the kingdom's strange rituals and growing corruption. Along the way, she meets memorable allies and enigmatic rivals, accepts challenging quests, and masters new acrobatic abilities and silk-based combat techniques. As the truth behind Pharloom's fate slowly emerges, Hornet must confront formidable guardians and unravel a mystery that threatens the entire realm, forging her own path in an epic adventure filled with danger, discovery, and hope.

Hollow Knight follows the journey of a mysterious silent warrior who ventures into the forgotten underground kingdom of Hallownest, a once-great civilization now consumed by decay and corruption. As the Knight explores its vast caverns, ancient ruins, and haunted cities, they uncover the tragic history of a kingdom destroyed by a mysterious infection that has driven its inhabitants to madness. Along the way, they encounter memorable allies, formidable foes, and powerful beings whose stories are intertwined with Hallownest's fate. Through exploration, challenging battles, and hidden secrets, the Knight gradually learns the truth behind the kingdom's downfall and their own purpose. Every discovery brings them closer to confronting the source of the corruption and deciding the ultimate fate of Hallownest.