ARC Raiders Guide: Obtaining and Utilizing the Buried City Residential Master Key

The Buried City Residential Master Key in ARC Raiders is an essential item that unlocks three specific doors within the Buried City map. As an uncommon rarity key, it offers players a greater chance of discovery compared to other more elusive Epic rarity keys found in the game’s loot pool. This guide aims to provide insights on where to locate the Buried City Residential Master Key and the doors that it can unlock.

Last Updated: January 21, 2026 by Ayyoun Ali: The Buried City Residential Master Key stands out as one of the most resourceful keys in ARC Raiders, offering access to multiple locked areas throughout the game. Gaining entry to these locations during Night Raids can yield some of the game’s most coveted loot, including rare blueprints. This latest update includes an additional location for a locked room that can only be accessed using the key.

How to Obtain the Buried City Residential Master Key in ARC Raiders

Buried City Residential Master Key ARC Raiders

To find the Buried City Residential Master Key, players should explore various residential areas throughout the ARC Raiders maps. This key can appear in common locations such as drawers, cabinets, or even sitting out in the open on shelves. Below are some of the most effective spots to search for the key:

Map	Key Location Details	Specific Map Area
Dam Battlegrounds	Look on the outskirts; these areas are generally safe from PvP encounters.
Buried City	Top locations include the Grandioso Apartments and the cluster of houses east of the Abandoned Highway Camp. Note that these spots are frequented by raiders, so caution is advised.

Where to Utilize the Buried City Residential Master Key in ARC Raiders

Buried City Residential Master Key Use Location ARC Raiders

This master key grants access to three distinct doors within the Buried City. The locations include:

Main Street Apartment

Buried City Residential Master Key Door 1 ARC Raiders

To reach the Main Street apartment, navigate to the location marked as Door 1 in the accompanying map. You’ll find yourself at street level, where you can use the Buried City Residential Master Key. Inside, you’ll be able to explore two floors and gather a moderate amount of loot.

Locked Room in Grandioso Apartments

Buried City Residential Master Key Door 2 ARC Raiders

The Grandioso Apartments are the prime location for using the Buried City Residential Master Key. Enter the building at the indicated point on the map, find the elevator shaft, and descend to the basement level. The locked room is at the end of the hallway; use your key to access it and loot the area thoroughly, including the adjacent room with a balcony accessible through a broken window.

Red Tower Locked Loot Room

Buried City Residential Master Key Red Tower ARC Raiders

The final locked room accessed by the Buried City Residential Master Key is situated in the buildings beneath the Red Tower. Look for a sandy slope leading between these structures. Enter through one of the marked windows to access the derelict building, and proceed through a hole in the wall on your right to find the locked room at the bottom of the staircase.

This location also contains several residential-style storage units and cabinets. For maximum benefit, visiting during a Night Raid is recommended to take full advantage of the loot potential with your key.

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