- What to know
- What the Spaceport Trench Tower Key actually does
- Where to use the Spaceport Trench Tower Key
- Important detail: always check both doors
- What you’ll find inside the Trench Tower room
- Enemies and player threats inside the tower
- Where to find the Spaceport Trench Tower Key
- Best practices for using the key safely
- Spaceport Trench Towers for farming loot
What to know
- The Spaceport Trench Tower Key is single-use and consumed on entry
- It unlocks one of the most loot-dense interior rooms on the Spaceport map
- The key works on two identical Trench Towers: North and South
- Enemies and other players make this a high-risk area
In ARC Raiders, keys are more than convenience items—they are strategic decisions. The Spaceport Trench Tower Key is one of the most valuable interior keys currently available because it grants access to a sealed tower room packed with containers, crafting materials, and occasional high-rarity weapons. Knowing where to use it, when to use it, and how to survive after unlocking it is crucial if you want to extract with profit.
What the Spaceport Trench Tower Key actually does
The Spaceport Trench Tower Key unlocks a locked interior room inside a Trench Tower on the Spaceport map. Once used, the key is permanently consumed, meaning you only get one attempt per key.

Inside, you gain access to a multi-level interior space that is otherwise inaccessible. This area stands out because of its high container density, making it one of the most efficient loot locations per minute—if you survive.
| Key property | Details |
|---|---|
| Key type | Single-use |
| Map | Spaceport |
| Unlocks | Trench Tower interior room |
| Consumed on use | Yes |
Where to use the Spaceport Trench Tower Key
There are two valid Trench Tower locations on the Spaceport map where this key works. Both towers are functionally identical, so the choice comes down to spawn position, enemy activity, and extraction routes.

North Trench Tower
The North Trench Tower is located in the northern section of Spaceport, roughly between the West Hangar and East Hangar. This tower is frequently visited because it often aligns with objectives like the Turnabout quest, making it a high-traffic but high-reward location.
South Trench Tower
The South Trench Tower mirrors the northern one in layout and loot. It offers the same interior room, container density, and rewards, but is often quieter depending on raid flow. If your spawn favors the southern side of the map, this is usually the safer option.
| Trench Tower | Key compatibility | Loot quality | Risk level |
|---|---|---|---|
| North | Yes | High | High |
| South | Yes | High | Medium–High |
Once inside either tower, move through the interior corridors or up the stairs until you find a door with red indicator lights. That door is the key-locked entrance.
Important detail: always check both doors
Each Trench Tower has two exterior doors. A critical but often overlooked detail is that one door may already be open while the other remains locked. If you immediately use your key without checking, you may waste a single-use key unnecessarily.
Always check both sides of the tower before using the key. This simple habit can save you one of the rarest resources in the game.
What you’ll find inside the Trench Tower room
The unlocked room contains a large, multi-floor interior space packed with interactable loot. This is not a single chest room—it is a full loot zone designed to reward exploration.

Typical rewards include multiple storage containers, cabinets, breachable crates, bags, crafting components, consumables, and occasional weapons. Weapon drops here tend to roll higher rarity, especially during night raids.
| Loot type | Availability |
|---|---|
| Storage containers | Very high |
| Crafting materials | High |
| Consumables | Common |
| Weapons | Occasional, higher rarity |
Because of this density, Trench Towers are popular farming targets, which also means they attract enemies.
Enemies and player threats inside the tower
Once the door is opened, expect arc enemies inside the tower. These enemies can engage you at close range while you are looting, creating dangerous moments if you are under-prepared.

Many experienced players block or seal both tower doors after entering. This serves two purposes: it reduces the chance of surprise PvP, and it signals to other players that the tower is already being looted, discouraging entry.
After looting, most players breach out and extract quickly, rather than lingering.
Where to find the Spaceport Trench Tower Key
The key does not have a fixed spawn location. It is a random high-tier loot drop that can appear in interior loot pools across multiple maps. Importantly, you do not need to find it on Spaceport.

Common locations where players have found the key include interior-heavy zones across Dam Battlegrounds, Blue Gate, Buried City, and similar areas with dense loot containers. It can also appear in containers, backpacks, or be looted from other players.
| Key drop source | Notes |
|---|---|
| Interior loot zones | Best chance |
| Containers & bags | Possible |
| Other players | Risky but viable |
Once you acquire the key, always store it in your Safe Pocket. This ensures the key is not lost on death before you reach the Spaceport.
Best practices for using the key safely
Because the key is single-use and valuable, timing matters. Night Raids tend to roll better loot, making them ideal for using the key if you can handle the increased danger. You should also choose the Trench Tower that offers the shortest, safest route from your spawn.
Using the key carelessly or too early in a raid often results in third-party encounters before you can extract.
Spaceport Trench Towers for farming loot
The Spaceport Trench Tower Key is one of the most rewarding—but dangerous—keys in Arc Raiders. Used correctly, it can fund multiple raids worth of progression. Used carelessly, it becomes a one-door ticket to an ambush. By understanding tower locations, checking doors, securing the interior, and extracting decisively, you turn a risky key into a reliable profit tool.