Sekiro: Shadows Die Twice is a single-player, action hack-and-slash game with role-playing elements. Set in a reimagined late 1500s Sengoku-era Japan, the story follows a shinobi known as Wolf who serves a young lord with divine heritage. After a brutal battle with the Ashina clan, Wolf loses both his master and his left arm. Rescued by a mysterious sculptor, he awakens with a prosthetic arm known as the Shinobi Prosthetic. With his oath to protect his master unbroken, Wolf sets out to rescue him and dismantle the forces seeking to exploit the boy’s power of immortality.

The player explores interconnected environments composed of castles, villages, forests, and mountain regions. Traversal is more vertical than in other games of its type, using Wolf’s grappling hook to scale rooftops, leap across cliffs, and access hidden areas. Progression requires defeating powerful enemies and bosses that guard pathways, uncovering shortcuts, and acquiring new prosthetic attachments and combat skills.

Combat centers on posture and deflection rather than draining health through conventional attacks. Every character has a posture meter that breaks when pressured by repeated strikes or perfectly timed parries, allowing for a deathblow. The system emphasizes aggression, timing, and precision over defensive play. Boss encounters test mastery of these mechanics, with many requiring recognition of attack patterns and adaptation to multiple phases. Wolf’s prosthetic arm expands combat options with attachments such as shuriken, an axe, or a flame vent. These tools consume spirit emblems, which are collected from defeated enemies or purchased, and can be upgraded through crafting. Stealth is also viable, with players able to crouch, cling to ledges, and perform assassination moves on unaware targets. Healing is tied to the Healing Gourd, which can be refilled and upgraded as the game progresses.

Progression uses experience points and skill trees rather than traditional loot or equipment systems. Wolf earns skill points by defeating enemies, which can be invested into combat arts, stealth techniques, and prosthetic improvements. Death introduces a unique mechanic: players can revive on the spot at the cost of limited revival nodes, but repeated deaths spread Dragonrot, a disease that afflicts NPCs and restricts side quests until cured. Prayer Beads collected from mini-bosses increase maximum health and posture, while Memories gained from major bosses enhance attack power.

The game does not feature traditional character customization or multiplayer. Instead, it focuses on a fixed protagonist and handcrafted narrative. Multiple endings exist, determined by key player choices during story events, offering different conclusions to Wolf’s journey.