The Spaceport Trench Tower key is required to access the locked areas inside the Trench Towers at the Acerra Spaceport in ARC Raiders. This key unlocks a total of eight doors spread across two floors in multiple towers, which contain valuable and strategic loot items.

Spaceport Trench Tower Key: Location

The Spaceport Trench Tower key is typically found through scavenging. While the exact locations of the key spawns can vary, you're likely to find it in places like the Ruby residence or Pale Apartments on the Dam Battlegrounds map.

We found ours in a suitcase in Pale Apartments.

We also found the Spaceport Container Storage Key in Pale Apartments. So it's definitely worth a travel.

Using the Spaceport Trench Tower key

Once acquired, the key unlocks 8 doors spread over multiple towers in the Spaceport’s trench area. Each tower contains two doors on the first floor and two on the second floor, opening up access to high-value loot containers and strategic positions for gameplay.

The Trench Towers are part of the broader Spaceport area, which includes several other notable points of interest, such as the Control Tower, Arrival and Departure Buildings, and Container Storage zones.

The Spaceport Trench Tower key is also needed for as part of the Turnabout quest, which makes it one of the more important items in the area.