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The Zombie trait in PF2e/SF2e identifies a creature as a mindless, shambling corpse with a narrow, violent behavior pattern and a set of mechanical adjustments. Rules and adjustment entries describe zombies as “mindless, rotting corpses that attack everything they perceive,” usually combining mindless, undead, and zombie traits.

Key mechanical features, as expressed through zombie adjustment rules and sample statblocks:

Traits added – Zombie adjustments add the mindless, undead, and zombie traits to the base creature.

HP increase – The creature’s HP increases based on its level (specific formulas in adjustment rules).

Immunities – Zombies gain immunities typical of mindless undead: death effects, disease, mental, paralyzed, poison, unconscious, and similar effects; in SF2e, mindless undead add mental to the standard undead immunities.

Slowed and no reactions – Many zombie write‑ups give zombies slowed 1 and “can’t use reactions,” reflecting their lumbering, delayed responses.

Weaknesses – PF2e zombies commonly have weaknesses to positive/vitality energy and slashing damage, while zombie templates and variants can invert this with “unkillable” style abilities that trade slashing weakness for universal resistance and critical weakness.

Behavior pattern – Zombie adjustment text and trait flavor consistently stress that zombies attack everything they perceive and only desire to consume the living, stopping only when destroyed.

Zombies are a subtype of undead, and “undead without minds, such as most zombies, have the mindless trait,” tying them into the wider void‑energy undead framework (void healing, vitality damage, unholy alignment).