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Hollow Knight Items and Relics

56 inventory entries with the description the game prints, in 9 groups. The groups are our reading of the entry keys in the files.

Source: Hollow Knight game files, version 1.5.78.11833, Team Cherry. Steam now carries 1.5.12620, which has fixes only. © Team Cherry. PinDrop is fan-made and not affiliated with Team Cherry.

Abilities

Movement and exploration powers, the Dream Nail line and Dreamgate.

Abilities: name and in-game description
NameKey in filesIn-game description
Isma's TearACIDARMOURFruit formed from a single hardened tear. Once ingested it provides protection from the searing, acidic pools found in certain parts of Hallownest.
Mothwing CloakDASHCloak threaded with mothwing strands. Allows the wearer to dash forwards along the ground or through the air.
Monarch WingsDOUBLEJUMPWings of ethereal matter that shimmer in the darkness. Allow one to jump again in mid-air.
DreamgateDREAMGATEAllows the wielder to travel instantly through dream. Hold DOWN while using the Dream Nail to set a Dreamgate. Hold UP while using the Dream Nail to spend 1 Essence and travel to the placed Dreamgate. Some areas may lack a strong connection to any dream, disallowing use of the Dreamgate.
Dream NailDREAMNAIL_AAllows the wielder to cut through the veil between dreams and waking. Can be used to reveal hidden dreams or open gateways. The Dream Nail can collect Essence, remnants of wishes and dreams.
Awoken Dream NailDREAMNAIL_BAllows the wielder to cut through the veil between dreams and waking. Can be used to reveal hidden dreams or open gateways. The power of the Dream Nail has fully awoken, allowing entry into certain protected memories.
Shade CloakSHADOWDASHCloak formed from the substance of the Abyss. Allows the wearer to dash through enemies and their attacks without taking damage.
Crystal HeartSUPERDASHThe energy core of an old mining golem, fashioned around a potent crystal. The crystal's energy can be channeled to launch the bearer forward at dangerous speeds.
Mantis ClawWALLJUMPClaw carved from bone. Allows the wearer to cling to walls and leap off of them.

Spells

Focus and the three SOUL spell lines, each with its upgrade.

Spells: name and in-game description
NameKey in filesIn-game description
Vengeful SpiritSPELL_FIREBALL1Conjure a spirit that will fly forward and burn foes in its path. The spirit requires SOUL to be conjured. Strike enemies to gather SOUL.
Shade SoulSPELL_FIREBALL2Conjure a shadow that will fly forward and burn foes in its path. The shadow requires SOUL to be conjured. Strike enemies to gather SOUL.
FocusSPELL_FOCUSFocus collected SOUL to repair your shell and heal damage. Strike enemies to gather SOUL.
Desolate DiveSPELL_QUAKE1Strike the ground with a concentrated force of SOUL. This force can destroy foes or break through fragile structures. The force requires SOUL to be conjured. Strike enemies to gather SOUL.
Descending DarkSPELL_QUAKE2Strike the ground with a concentrated force of SOUL and Shadow. This force can destroy foes or break through fragile structures. The force requires SOUL to be conjured. Strike enemies to gather SOUL.
Howling WraithsSPELL_SCREAM1Blast foes with screaming SOUL. The Wraiths requires SOUL to be conjured. Strike enemies to gather SOUL.
Abyss ShriekSPELL_SCREAM2Blast foes with screaming SOUL and Shadow. The Wraiths requires SOUL to be conjured. Strike enemies to gather SOUL.

Nail arts

Charged nail attacks.

Nail arts: name and in-game description
NameKey in filesIn-game description
Cyclone SlashART_CYCLONEThe signature Nail Art of Nailmaster Mato. A spinning attack that rapidly strikes foes on all sides.
Great SlashART_DASHThe signature Nail Art of Nailmaster Sheo. Unleashes a huge slash directly in front of you which deals extra damage to foes.
Dash SlashART_UPPERThe signature Nail Art of Nailmaster Oro. Strike ahead quickly after dashing forward.

Nail upgrades

The five stages of the nail.

Nail upgrades: name and in-game description
NameKey in filesIn-game description
Old NailNAIL1A traditional weapon of Hallownest. Its blade is blunt with age and wear.
Sharpened NailNAIL2A traditional weapon of Hallownest, restored to lethal form.
Channelled NailNAIL3A cleft weapon of Hallownest. The blade is exquisitly balanced.
Coiled NailNAIL4A powerful weapon of Hallownest, refined beyond all others.
Pure NailNAIL5The ultimate weapon of Hallownest. Crafted to perfection, this ancient nail reveals its true form.

Keys, passes and quest items

Keys, the Tram Pass, King's Brand and the Grey Mourner's flower.

Keys, passes and quest items: name and in-game description
NameKey in filesIn-game description
City CrestCITYKEYStone slab bearing the crest of the Hallownest capital city. Has an insert on the back that would fit into a slot.
Delicate FlowerFLOWERGiven to you by the Grey Mourner in the Resting Grounds. She has asked you to place it at the grave of her mantis lover in the Queen's Gardens. The flower is very fragile and will be destroyed if you take damage or ride the Stagways.
Ruined FlowerFLOWER_BROKENGiven to you by the Grey Mourner in the Resting Grounds. It has been destroyed and is now worthless as an object of sentiment.
King's BrandKINGSBRANDMarks the bearer as King. Hallownest's ancient places shall open before it.
Love KeyLOVEKEYCovered in padding, it bears a symbol of love.
Simple KeySIMPLEKEYCheaply manufactured from a common design. Can be used to open a range of simple locks. Flimsily made, it breaks after a single use.
Shopkeeper's KeySTOREKEYSmall brass key made in the likeness of a shopkeeper.
Tram PassTRAM_PASSA lifetime pass to the tramways connecting parts of Hallownest. These passes cost a huge amount of Geo and each purchase required authorisation by the King.
Elegant KeyWHITEKEYOrnate key made from a glistening white metal. Bears the mark of Hallownest's Soul Sanctum and glows faintly in the dark.

Maps and tools

Map, quill and lantern.

Maps and tools: name and in-game description
NameKey in filesIn-game description
Lumafly LanternLANTERNCrystal lantern containing a Lumafly. Brightens dark caverns so wanderers can find their way.
MapMAPMap of Hallownest, partially filled out by Cornifer. Without a Quill it can not be updated.
Map and QuillMAPQUILLMap of Hallownest. When resting at a bench or elsewhere, the quill can be used to update the map with newly discovered areas.
QuillQUILLUsed to record one's travels. Requires a map to be of any use.

Relics

Collectible relics (TRINKET1 to TRINKET4 in the files).

Relics: name and in-game description
NameKey in filesIn-game description
Wanderer's JournalTRINKET1A journal left behind by a long-dead traveller. The words are written in a forgotten dialect and difficult to understand. Relic from Hallownest's past. This item now holds little value except for those dedicated to the kingdom's history.
Hallownest SealTRINKET2Official seal of the Kingdom of Hallownest, symbolising the authority of the King and his Knights. Relic from Hallownest's past. This item now holds little value except for those dedicated to the kingdom's history.
King's IdolTRINKET3A white idol depicting the King of Hallownest. The elusive king was worshipped through these idols. Relic from Hallownest's past. This item now holds little value except for those dedicated to the kingdom's history.
Arcane EggTRINKET4Mysterious stone egg from before the birth of Hallownest. Relic from the ancient past. This item now holds little value except for those dedicated to history.

Resources and upgrades

Geo, Pale Ore, Rancid Egg, mask shards, vessel fragments (progress states of the same collectible).

Resources and upgrades: name and in-game description
NameKey in filesIn-game description
GeoGEOThe currency of Hallownest, made from fossiled shells of various forms. Can be traded for goods or used as toll in various old mechanisms.
Mask ShardsHEARTPIECE_0Shards of an ancient mask, worn to protect oneself from harm. Collect four to strengthen your shell and protect yourself from damage.
Mask ShardHEARTPIECE_1A shard of an ancient mask, worn to protect oneself from harm. Collect three more to strengthen your shell and protect yourself from damage.
Mask ShardsHEARTPIECE_2Shards of an ancient mask, worn to protect oneself from harm. Collect two more to strengthen your shell and protect yourself from damage.
Mask ShardsHEARTPIECE_3Shards of an ancient mask, worn to protect oneself from harm. Collect one more to strengthen your shell and protect yourself from damage.
Ancient MaskHEARTPIECE_ALLA complete mask. When whole, a mask protects its wearer, shielding the true form beneath.
Pale OreORERare, pale metal that emanates an icy chill. Prized by those who craft weapons.
Rancid EggRANCIDEGGFatty, rancid egg of an unknown creature. Emits a powerful stench of decay. Generally not considered edible.
Vessel FragmentsSOULORBS_0Fragments of a white vessel made to contain soul. Collect three to form a full vessel, allowing you to carry more soul.
Vessel FragmentSOULORBS_1Fragment of a white vessel made to contain soul. Collect two more to form a full vessel, allowing you to carry more soul.
Vessel FragmentsSOULORBS_2Fragments of a white vessel made to contain soul. Collect one more to form a full vessel, allowing you to carry more soul.
Soul VesselSOULORBS_ALLA complete vessel, imbued with the power to contain soul.

Other

Entries whose description is empty in the files, or that we could not place in the groups above.

Other: name and in-game description
NameKey in filesIn-game description
EssenceDREAMCORENo description in the files.
Hunter's JournalJOURNALNo description in the files.
Charm NotchNOTCHNo description in the files.

About this list

Each row is one inventory entry in the game files: its display name, its key and the text the inventory shows. Mask shards and vessel fragments appear several times because the game keeps one entry for each stage of the collectible. Entries with an empty description sit in Other; we add no text of our own.

Charms are on their own page: all charms with cost. Pickup places of benches, charms, mask shards and vessel fragments are pins on the map. The four relics have a layer page each: Wanderer's Journals, Hallownest Seals, King's Idols and Arcane Eggs. Pale Ore and Rancid Eggs have layer pages too: Pale Ore locations and Rancid Egg locations.

Source field: games/hollow-knight/data/items.json: key, name, description.