Object properties

In GruntHack, an object property is a magical attribute associated with a non-artifact item which does not normally have that property; for example, a leather cloak of fire resistance would have the "fire resistance" property. Only weapons (including weapon tools), armor, rings, and amulets can have object properties.

Randomly generated objects have a 1 in 100 chance of being generated with at least one property.

A wish can apply a single non-detrimental property to the object wished for. Of those objects, each has a recursive 1 in 250 chance of having an additional property applied to it.

Wizards can sense object properties before they are identified, and see a "magical" prefix before the relevant properties are known.

Properties applicable to most or all items

• Reflection: Grants reflection.
• Searching: Grants automatic searching.
• Warning: Grants warning.
• Stealth: Grants stealth.
• Fumbling: Grants fumbling.
• Hunger: Grants hunger.
• Aggravation: Grants aggravate monster.

Properties applicable to weapons

• Fire: Deals double damage to non-fire-resistant targets; has a chance to destroy potions, scrolls, and spellbooks.
• Frost: Deals double damage to non-cold-resistant targets; has a chance to destroy potions.
• Vorpal: Single-handed weapons behead non-headless targets on a 1-in-20 chance (and jabberwocks 100% of the time), as with Vorpal Blade; double-handed weapons bisect small creatures and cut deeply into large creatures on a 1-in-20 chance, as The Tsurugi of Muramasa.
• Thirsty: Drains life of non-drain-resistance targets, as Stormbringer and The Staff of Aesculapius.
• Detonation: Explodes upon hitting something after being fired or thrown. Only applicable to projectiles and launchers.

Properties applicable to armor

• Fire resistance: Grants fire resistance.
• Cold resistance: Grants cold resistance.
• Drain resistance: Grants drain resistance.
• Speed: Grants extrinsic speed, as boots of speed.
• Oilskin: Permanently greased, as the oilskin cloak.
• Power: Sets strength to 25, as gauntlets of power.
• Dexterity: Grants a +(enchantment) bonus to dexterity, as gauntlets of dexterity.
• Brilliance: Grants a +(enchantment) bonus to intelligence and wisdom, as a helm of brilliance.
• Telepathy: Grants extrinsic telepathy, as the helm of telepathy or amulet of ESP.
• Displacement: Grants displacement, as the cloak of displacement.
• Clairvoyance: Grants clairvoyance, as though wearing a cornuthaum as a wizard.