Labyrinth’s Shout – Obtained at the end of the quest “The Damaged Map”.
Beastcurse – Inside a box just before you drop down to the boss room in the Junk Heap.
The Devil Queen – Inside a box when entering the Lost Shrine from the boat entrance, just before the second ladder.
Phoenix Spear – Available from the Weapon Shop in Facade for 37,400 gold.
Captain’s Holy Spear – Available from the Weapon Shop in Facade for 30,000 gold.
Spear of the Usurper – Available from the Weapon Shop in Seafront for 19,200 gold.
Sunrise – Available from the Weapon Shop in Nier’s Village for 21,600 gold.
Transience – Starting spear in Part Two of the story.
Fool’s Lament – Obtained during the second door of the World of the Recycled Vessel.
Phoenix Sword – Found in the first room of the Shadowlord’s Castle, in a box to the left of the doors you progress through.
Labyrinth’s Song – Obtained at the end of the quest “Disturbing the Sleep of Kings”.
Iron Will – Automatically obtained during the story when you get the item from the Junk Heap for the Weaponsmith.
Beastlord – Found just outside the door to the boss room when you return to the Lost Shrine in Part Two.
Vile Axe – Available from the Weapon Shop in Seafront for 21,600 gold.
Fang of the Twins – Found on the first floor of the Manor Basement at the start of Part Two, hidden in a box in the first room with all the boxes (if you miss it you can go back down there later in the same way).
Axe of Beheading – Available from the Weapon Shop in Nier’s Village for 19,200 gold.
Kusanagi – Starting two-handed sword in Part Two of the story.
XXXXX’s Sword – Obtained after completing Ending E.
Fool’s Embrace – Obtained during the first door of the World of the Recycled Vessel.
Iron Pipe – Found in Nier’s Dream (the location you are transported to when you complete “The Magical Stone”) OR automatically given when you complete Ending B.
Labyrinth Whisper – Drops from the Shade you need to kill during the side quest “The Bridge in Peril”.
Ancient Overlord – Obtained automatically during the story from the King of Facade.
Phoenix Dagger – Available from the Weapon Shop in Seafront for 36,200 gold.
Blade of Treachery – Found inside a box in the Manor while helping Emil.
Faith – Obtained from the Mayor in the Forest of Myth if you release the other two villagers from the Deathdream (can be purchased in The Aerie in part 2 if you miss it here, before obtaining Sacrifice key fragment).
Rebirth – Obtained automatically during the story when you rescue the prince of Facade.
Earth Wyrm’s Claw – 8,400 gold from shop in Facade.
Moonrise – Help the villager being attacked by shades in the southern plains area.
Nirvana Dagger – Located in a breakable box midway up the Lost Shrine.
Beastbain – 16,800 gold from shop in Nier’s Village.
Lily-Leaf Sword – 2,400 gold from shop in Nier’s Village.
The last one-handed sword is obtained after completing Ending E. All weapons from Part One can still be obtained in Part Two, so you can’t completely miss any of them. In Part One you only find/use one-handed swords for story reasons, then the other types can be found in Part Two.
NieR Replicant ver.1.22474487139 – Trophy Guide & Roadmapīelow are listed all weapons and the locations they are found.
NieR Replicant ver.1.22474487139 – Flower Growing Guide.
NieR Replicant ver.1.22474487139 – Side Quests Guide.
Upgrading all weapons is the longest grind in the game, and takes an extra 10 – 20 hours at least on top of everything else due to the number of items and how rare some are to find.