ARC Raiders Spaceport Keys open four groups of doors: Shipping Warehouse, Container Storage, Ground Control Tower B6 and the Trench Towers. Each uses its own key, and some buildings have several locks that accept the same item. A single key opens only one door.
Here are the actual floors and sides of the buildings to look for. The item names tell you the map, but getting the floor right is what saves a wasted journey.
ARC Raiders Spaceport Keys: Warehouse Key: Shipping Warehouse second floor
ARC Raiders Spaceport Keys can send you to very different levels of the same industrial complex. The Warehouse Key goes to the Shipping Warehouse, second floor, where locked doors are found along the northern side. Enter the warehouse and take the stairs up, then follow the north-facing corridors rather than checking every loading-bay door on the ground. The key is Uncommon and works on more than one compatible warehouse door. You still get one unlock per key, so pick whichever entrance fits your route.
Container Storage Key: eastern upper floor
For the Rare Container Storage Key, go to the Container Storage point of interest, climb to the top floor and move towards its east side. There are three doors in that part of the complex that the key can fit. They’re not street-level cargo doors. Once you use one key, it disappears; two doors require two keys. ARC Raiders Spaceport Keys don’t open an entire storage floor at once just because several locks use the same item. Inspect the actual door before choosing which room to search.
Control Tower Key: B6 tower ground-level entrance
The Rare Control Tower Key opens ground-level doors inside Ground Control Tower B6, giving you access upwards towards the tower’s top floor. Travel to that named tower and look for the security access at its base rather than searching for a locked door on the roof. The tower is a different structure from the Warehouse and the Trench Towers. ARC Raiders Spaceport Keys are ordinary consumables: one unlock grants passage but doesn’t change the doors in other towers, nor does it guarantee the upper loot containers will contain a particular blueprint.
ARC Raiders Spaceport Keys: Trench Tower Key: eight eligible doors
The Uncommon Trench Tower Key works at the North and South Trench Towers. There are eight compatible doors in total: two on each tower’s first floor and two on each tower’s second floor. You can spend a copy on any one of these locks, but it doesn’t open every door in the towers. When deciding on a route, enter the nearer tower and go to the floor that fits your objective rather than assuming the key has one fixed room. ARC Raiders Spaceport Keys make much more sense when you match a floor before deployment.
Empathetic Prototypes and the Trench terminal
Lance’s Empathetic Prototypes sends you to the Trench area for a suspended cargo crate containing the Project Pathos Empathy Core. A Trench Tower Key lets you use the South Trench Tower’s ground-floor override terminal, one route for releasing the magnetic lock. Without a key, there’s a manual lock interaction on the outside of the North Tower accessible with a Grappling Hook. The quest doesn’t require you to burn a key if you can complete that alternative. Keep this separate from the ordinary loot rooms behind other Trench Tower doors.
Where to find the four keys
Most ARC Raiders Spaceport Keys are scavenged from random containers across multiple maps, including areas that aren’t Spaceport. Keys are not guaranteed to spawn in a cabinet beside their matching locked room. The Trench Tower Key appears among some quest-related access requirements and rewards, so check the active mission before discarding one. If you’re bringing an Epic or Rare key, use a Safe Pocket when your Augment allows it. A key found on Buried City can still belong to Spaceport; the name identifies the destination, not the drop point.
ARC Raiders Spaceport Keys: How to choose the best room
Embark’s Flashpoint update improved loot value in key rooms based on rarity, but it didn’t publish a fixed per-room loot table. Container Storage and Control Tower keys are Rare; Warehouse and Trench Tower keys are Uncommon. That doesn’t guarantee a weapon, blueprint or a full bag. ARC Raiders Spaceport Keys are worth using when you can reach the door safely and still have time to extract. If you’re already at Shipping Warehouse, don’t travel across the map to the Trench with a different key just because you hope its loot will be better.
Extraction and common mistakes
Before opening a room, check its floor and the route back out. Shipping Warehouse is second floor north, Container Storage is top floor east, Control Tower B6 begins at a ground-floor lock, and the Trench Towers have locks on their first and second floors. ARC Raiders Spaceport Keys disappear after one unlock. Opening a warehouse room isn’t the same as unlocking a bunker or the Emperor dungeon. If the correct lock isn’t at your location, you’re probably in the wrong building or on the wrong level.
Related Guides
Official source: Embark Studios Flashpoint patch. Door details: ARC Raiders Wiki key list.
