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Find the Cogfly in the High Halls, inside the Citadel. The route uses Clawline to activate mechanisms that shift a hidden spike passage; at the workbench room beyond it, craft the tool with one Craftmetal.
What you need before heading there
- Clawline: You need it to activate mechanisms along the hidden spike route.
- One Craftmetal: The workbench in the destination room uses one unit to craft Cogfly, according to the Nintendo Life tool guide and the Hollow Knight Wiki.
How to reach the Cogfly workbench
- Enter the High Halls in the Citadel. The area guide describes an approach from the Choral Chambers using Clawline; see Silksong Map’s High Halls guide.
- Look for the hidden route through spikes. Use Clawline on the mechanisms you encounter to move the spikes and open the way forward.
- Continue through the passage until you reach a room with a workbench. The sources do not establish a reliable room name or coordinate.
- At the workbench, spend one Craftmetal to make Cogfly.
What Cogfly does
Cogfly is a Red Tool that follows Hornet and attacks nearby enemies on its own, according to the Hollow Knight Wiki. The wiki says each Cogfly breaks after five hits and follows Hornet between rooms, but not during fast travel.
Guides disagree about how many Cogflies can be active at once: Nintendo Life reports three, while the community-maintained Hollow Knight Wiki says up to four. The available sources do not establish a consistent cap for the current game version, so this guide does not give a definitive number.
Quick Recap
Best Value
Rank #4
- Classic side-scrolling action, with all the modern trimmings.
- Forge your own path! The world of Hallownest is expansive and open. Choose which paths you take, which enemies you face and find your own way forward.
- Evolve with powerful new skills and abilities! Gain spells, strength and speed. Leap to new heights on ethereal wings. Dash forward in a blazing flash. Blast foes with fiery Soul!
- Equip Charms! Ancient relics that offer bizarre new powers and abilities. Choose your favorites and make your journey unique!
- An enormous cast of cute and creepy characters all brought to life with traditional 2D frame-by-frame animation.
Rank #3
- Classic side-scrolling action, with all the modern trimmings.
- Tightly tuned 2D controls. Dodge, dash and slash your way through even the most deadly adversaries.
- Explore a vast interconnected world of forgotten highways, overgrown wilds and ruined cities.
- Forge your own path! The world of Hallownest is expansive and open. Choose which paths you take, which enemies you face and find your own way forward.
- Evolve with powerful new skills and abilities! Gain spells, strength and speed. Leap to new heights on ethereal wings. Dash forward in a blazing flash. Blast foes with fiery Soul!.Equip Charms! Ancient relics that offer bizarre new powers and abilities. Choose your favourites and make your journey unique!.An enormous cast of cute and creepy characters all brought to life with traditional 2D frame-by-frame animation..
Rank #2
- Hollow Knight: Silksong is the epic sequel to Hollow Knight, the award winning action-adventure.
- Journey to all-new lands, discover new powers, battle vast hordes of bugs and beasts and uncover secrets tied to your nature and your past.
#1 Best Overall
- Discover the fallen insect kingdom of Pharloom! Explore mossy grottos, gilded cities and misted moors as you ascend to the shining citadel at the top of the world.
- Engage in lethal acrobatic action! Wield a huge suite of deadly moves as you dance between foes in swift, beautiful combat.
- Craft powerful tools! Master an ever-expanding arsenal of weapons, traps, and mechanisms to vanquish your enemies and explore new heights.
- Solve shocking quests! Hunt down rare beasts and solve ancient mysteries to grant the wishes of the downtrodden and restore the kingdom’s hope.
- Face over 200 ferocious foes! Beasts and hunters, monsters and knights. Defeat them all with bravery and skill!
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