Key Items are Items in Nier Replicant that are required to navigate through the World, complete Quests, and progress in the main story. This page serves to include information the list of Key Items in Nier Replicant, their descriptions, and acquisition.
Key Items - NieR Replicant
Most Key items are acquired by being discovered and picked up in remote corners scattered across different Locations. However, some items such as Maps, are are acquired from purchases from Merchants.
| Key Item | Description | Acquisition | Use |
| Moon Key | A keycard with the word Moon written on it; It is found in Emil's Manor | Found in Emil's Manor | Unlocks the Moon Door Emil's Manor |
| Star Key | A keycard with the word Star written on it; Found in Emil's Manor | Given to Nier by Emil when they meet in his Manor. | Unlocks the Star Door in Emil's Manor |
| Light Key | A keycard with the word Light written on it; Found in Emil's Manor | Found in Emil's Manor | Unlocks the Light Door in Emil's Manor |
| Darkness Key | A keycard with the word Darkness written on it; Found in Emil's Manor | Found in Emil's Manor | Unlocks the Darkness Door in Emil's Manor |
| Royal Compass | A royal compass that helps the user navigate sandstorms | Acquired from the guard on the right hand outside of the King's Manor in Facade | To enable the Protagonist to navigate in the Desert during sandstorms |
| Vapor Moss | A medicine to help Yonah's cough | Acquired from the southern gate of the Village before fighting the Jack of Hearts | Allegedly treats Yonah's cough. Kickstarts the Jack of Hearts boss fight. |
| Max's Herbs | Even in death, Max kept these in his mouth | Retreived from Max's corpse in the Northern Plains by the water | Medicine used to treat the old man villager's heart problem. Used in completing the Quest, A Dog Astray. |
| Yonah's Ribbon | A charming ribbon that Yonah wore in her hair | Acquired from the northern gate of the Vilage | Leads Nier to the Lost Shrine on his search for Yonah |
| Bronze Key | A bronze key found in the Lost Shrine | Found in the Lost Shrine | Unlocks a door required to progress through the Lost Shrine |
| Boar Tusk | A tusk from an old, cunning boar. Fighters in possession of one of these gain the respect of other boars | Acquired by completing the Quest, Boar Hunt | Enables Nier to mount ride wild boars |
| Potted Freesia | A potted freesia, ready for delivery to the Aerie | Received from the Seafront Resident below the lighthouse | Required to be delivered to the Aerie to complete the Quest, The Belated Letter |
| AA Keycard | A keycard, marked "AA," discovered in Emil's manor's basement | Found in the Underground Laboratory in Emil's Manor | Unlocks the AA doors in the Underground Laboratory |
| KA Keycard | A keycard , marked "SA," discovered in the manor basement | Found in the Underground Laboratory in Emil's Manor | Unlocks the KA doors in the Underground Laboratory |
| SA Keycard | A keycard , marked "TA," discovered in Emil's manor's basement. | Found in the Underground Laboratory in Emil's Manor | Unlocks the SA doors in the Underground Laboratory |
| NA Keycard | A keycard , marked "NA," discovered in Emil's manor's basement. | Found in the Underground Laboratory in Emil's Manor | Unlocks the NA doors in the Underground Laboratory |
| HA Keycard | A keycard , marked "HA," discovered in Emil's manor's basement. | Found in the Underground Laboratory in Emil's Manor | Unlocks the HA doors in the Underground Laboratory |
| MA Keycard | A keycard , marked "MA," discovered in Emil's manor's basement. | Found in the Underground Laboratory in Emil's Manor | Unlocks the MA doors in the Underground Laboratory |
| YA Keycard | A keycard , marked "YA," discovered in Emil's manor's basement. | Found in the Underground Laboratory in Emil's Manor | Unlocks the YA doors in the Underground Laboratory |
| RA Keycard | A keycard , marked "RA," discovered in Emil's manor's basement. | Found in the Under Laboratory in Emil's Manor | Unlocks the RA doors in the Underground Laboratory |
| WA Keycard | A keycard , marked "WA," discovered in Emil's manor's basement. | Found in the Under Laboratory in Emil's Manor | Unlocks the WA doors in the Underground Laboratory |
| World Map | A map of the entire region | - | A map of the entire region |
| Nier's Village Map | A map of Nier's Village | Automatically acquired in the beginning of the game. | Provides a detailed overview of the Village. |
| Lost Shrine Map | A map of Lost Shrine | Acquired in a crate after the first flight of stairs in the Lost Shrine | Provides a detailed overview of the Lost Shrine. |
| The Aerie Map | A map of the Aerie | Purchased at the Village from the Item Shop. | Provides a detailed overview of Aerie. |
| Seafront Map | A map of Seafront | Purchased at Seafront from the Item Shop. | Provides a detailed overview of Seafront. |
| Desert Map | A map of the Desert | Purchased at Facade from the Item Shop. | Provides a detailed overview of the Desert |
| Facade Map | A map of Facade | Purchased at Facade from the Item Shop. | Provides a detailed overview of Facade |
| Barren Temple Map | A map of Barren Temple | Given to Nier by Fira before he enters into the temple | Provides a detailed overview of the Barren Temple |
| Junk Heap Area Map | A map of the area near Junk Heap | Acquired outside the Junk Heap | Provides a detailed overview of the Area outside Junk Heap |
| Junk Heap Map | A map of Junk Heap | Acquired from Jakob after speaking to him at the Two Brothers Weaponry. | Provides a detailed overview of Junk Heap |
| Manor Map | A map of Emil's Manor | Given to Nier by Emil when they meet in his Manor. | Provides a detailed overview of Emil's Manor |
| Forest of Myth Map | A map of the Forest of Myth | Purchased at the Village from the Item Shop. | Provides a detailed overview of the Forest of Myth |
| Underground Laboratory Map | A map of the Underground Laboratory | Picked up before the KA doors near the last divider of the first section upon entry | Provides a detailed overview of the Underground Laboratory in Emil's Manor |
| Northern Plains Map | A map of the Northern Plains | Given to Nier by Popola after completing the Prologue | Provides a detailed overview of the Northern Plains |
| Southern Plains Map | A map of the Southern Plains | Purchased at Seafront from the Item Shop | Provides a detailed overview of the Southern Plins |
| Eastern Road Map | A map of the Eastern Road | Purchased at Village from the Item Shop | Provides a detailed overview of the Eastern Road |
| The Stone Guardian Key | The first of the five Key Fragments the Protagonist needs to acquire to access the Shadowlord's Castle | Acquired at the Lost Shrine | Activates the portal on top of the Lost Shrine that leads to the Shadowlord's Castle when collected with the rest of the Key Fragments |
| The Law of Robotics Key | One of the five Key Fragments required to access the Shadowlord's Castle | Acquired at the Junk Heap | Activates the portal on top of the Lost Shrine that leads to the Shadowlord's Castle when collected with the rest of the Key Fragments |
| The Loyal Cerberus Key | One of the five Key Fragments required to access the Shadowlord's Castle | Acquired at the Desert | Activates the portal on top of the Lost Shrine that leads to the Shadowlord's Castle when collected with the rest of the Key Fragments |
| The Memory Tree Key | One of the five Key Fragments required to access the Shadowlord's Castle | Acquired at the Forest of Myth | Activates the portal on top of the Lost Shrine that leads to the Shadowlord's Castle when collected with the rest of the Key Fragments |
| Sacrifice Key | One of the five Key Fragments required to access the Shadowlord's Castle | Acquired at the Aerie | Activates the portal on top of the Lost Shrine that leads to the Shadowlord's Castle when collected with the rest of the Key Fragments |
| Shadowlord's Castle Map | A map of Shadowlord's Castle | Obtained in Shadowlord's Castle from Devola and Popola | Provides a detailed overview of the Shadowlord's Castle |
| Elevator Parts | A collection of replacement parts for the Junk Heap elevator | Obtained in Act 2 from the younger brother in the Junk Heap | Used to repair elevator Ev-B in the Junk Heap found on the first floor |
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