Buried City Residential Master Key Location in ARC Raiders

Buried City Residential Master Key in ARC Raiders can be used to unlock three different doors on the Buried City map. It's an uncommon rarity key, meaning you have a higher chance of finding it compared to other Epic rarity keys in the loot pool. This guide will help you get the Buried City Residential Master Key, and also show you the location of locked doors you can use it on.

Updated April 7, 2026, by Ayyoun Ali: Buried City Residential Master Key in ARC Raiders is one of the most valuable keys that can open multiple locked rooms on the map. Due to the uncommon rarity of the key, players can easily find it during normal raids on several maps, especially those that have dedicated residential-type loot areas. This guide was updated to add additional locations where players can get the Buried City Residential Master Key.

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By Ayyoun Ali

How to Get the Buried City Residential Master Key in ARC Raiders (Location)

Buried City Residential Master Key ARC Raiders

The Buried City Residential Master Key is a random drop item that can be found in various residential areas across ARC Raiders maps. Players will need to explore these areas on different runs, in the hope of finding it in a drawer, cabinet, suitcase, or simply sitting on a shelf. Here are some of the best locations where you can find the Buried City Residential Master Key in the game.

Map	Buried City Residential Master Key Location	Map Location
Dam Battlegrounds	Players can check out the Pale Apartments, Ruby Residence, and the Pattern House on each run of Dam Battlegrounds to get the Buried City Residential Master Key. These areas are on the outskirts of the map, so they're relatively safe from PvP action (unless a player spawns next to them).
Buried City	Two of the best locations to find the key in Buried City are the Grandioso Apartments and the group of houses east of the Abandoned Highway Camp (same location mentioned in GameRant's trinkets guide). Compared to locations in Dam Battlegrounds, these areas will have high raider activity, so be careful.
Blue Gate	One of the biggest residential locations on the Blue Gate map is the Village. Located in the northwestern part of the map, the area consists of several abandoned houses with multiple floors. Players can find several residential containers while exploring this location. However, there's a increased chance of encountering hostile raiders here during the Locked Gate event. As a bonus location, you can also solve the Raider's Refuge puzzle to enter its cellar, which usually has a high chance of containing the Buried City Residential Key in ARC Raiders, especially during Night Raid.

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

Buried City Residential Master Key Use Location ARC Raiders

The Buried City Residential Master Key opens up three doors on the Buried City map: one inside the Grandioso Apartments, another is an apartment near Main Street, and the last one is a locked apartment in the Red Tower district.

Apartment on Main Street

Buried City Residential Master Key Door 1 ARC Raiders

For the Main Street apartment, simply head to the location marked as Door 1 on the map image above. You'll arrive at the door on street level, where you can use the Buried City Residential Master Key in ARC Raiders. There are two floors to explore inside, and you'll get a moderate amount of loot out of this location.

Locked Room in Grandioso Apartments

Buried City Residential Master Key Door 2 ARC Raiders

The locked room in the Grandioso Apartments is a better place to use the Buried City Residential Master Key out of the two. Simply enter the Grandioso Apartment building from the point marked on the map image above. Head to the elevator shaft and descend to the lowest level.

Head inside the only room connecting to the hallway to come across the locked room. Use the Buried City Residential Master Key to open up the door, and start looting inside. Make sure to loot both of the rooms of the apartment, including the balcony that you can enter by breaking the glass.

Red Tower Locked Loot Room

Buried City Residential Master Key Red Tower ARC Raiders

The last locked room that requires the Buried City Residential Master Key in ARC Raiders is located inside the buildings under the Red Tower. Head to the marked area, and you'll spot a sandy slope descending between a row of buildings.

Buried City Residential Master Key Red Tower Locked Room ARC Raiders

Head inside one of the windows marked in the previous image to enter a derelict building with a hole in the wall. Head through the hole in the wall on the right to spot the locked room just at the base of the staircase.

This room also contains several residential-style containers and cabinets. However, like all keys, it's recommended to visit this room during a Night Raid to get the most loot out of using your key.