Nier: Automata puts you in the shoes of androids on a journey to reclaim the land, which was once the home of humans but is now in control of deadly machines. The game tells a compelling story about the androids, with deeply driven story quests.
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Other than the story campaign of the game, you will get to meet many side characters with their own stories to tell. There will be many sub-quests that you will get to experience in the game. One such side quest is called Treasure Hunt at the Castle, which you will find a walkthrough of in this guide.
Treasure Hunt at the Castle is a side quest you will unlock in Chapter 7 of the campaign after defeating A2 in the Forest Castle in the Report on A2 main quest. The machines will open the gates that connect the Machine Village and Forest Castle after the main quest. At the entrance of the gate that joins the two locations, you will find a robot by the name of Weird-talking Machine.
The robot will tell you about a hidden treasure that is locked somewhere in the Forest Castle. The treasure belongs to the deceased Forest King and is under the guard of a Forest Knight. The robot wants you to find the treasure and bring it back to him so that he can take a look at it.
The goodies are behind a door for which you will have to find a key first. You need to collect three machine parts that will combine to form the key to the gate. The machine parts are inside chests unavailable on the first run of the fort but will now appear once you go back for the side quest.
The quest marker will appear on the map near the gate.
There are two ways you can enter the Forest Castle. You can go straight in from the main entrance of the Forest Castle or
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