The Spaceport Trench Tower Key is one of the key collectables to find during your adventures in ARC Raiders. The primary purpose of the key is to gain access to some rooms that are closed in the Trench Towers of the Acerra Spaceport, which have valuable loot and gear. The place where the key is located can differ each time you play, thus it can take some time and effort to find it, but with a little searching, you can track it down and make good use of it once you reach the Spaceport.
Spaceport Trench Tower Key Location

If you want to find it, the best place to look for the Spaceport Trench Tower Key is in the Ruby Residences, which is located on the Dam Battlegrounds map. There often is a key somewhere around or even inside the building. If it is not there, look for it in the Research and Administration building as well; those are the closest places. Once you have the key, visit the Spaceport to unlock the Trench Towers.
You can find it in residential areas while scavenging, in drawers, and even on desks, or in the Research and Administration Building, especially on the second floor of the building. Just remember to loot everything you come upon; that’s the only way you’ll eventually run into random keys like this one.
Where to Use Spaceport Trench Tower Key

The Spaceport Trench Tower Key is an unlocking tool for door locks that are located inside the Trench Towers at the Acerra Spaceport. The total number of doors it can open is up to eight. In each tower on the first floor, there are two locked doors, and on the second, there are an additional two. The key itself has a weight of 0.25 kg, it is non-stackable, and if you have no further use for it, you can sell it for 100 credits.
