Where to Use the Spaceport Trench Tower Key in ARC Raiders

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Valencia

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ARC Raiders places heavy emphasis on keys as progression-defining loot. Few items are as exciting—or as anxiety-inducing to extract with—as the Spaceport Trench Tower Key. If you’ve picked one up and aren’t sure where it’s used, or you’re deciding whether it’s worth the risk to bring into a raid, this guide has you covered.

Below, you’ll learn exactly where to use the Spaceport Trench Tower Key, what kind of loot to expect, when to activate it for maximum value, and the most reliable ways to obtain one if you don’t already have it.

What Is the Spaceport Trench Tower Key?

The Spaceport Trench Tower Key is an uncommon but highly valuable loot-room key. Unlike many keys that open a single location, this one can unlock two separate buildings on the Spaceport map—making it flexible but also forcing you to choose carefully.

Each key is single-use, meaning you can only open one tower per key, not both.

Where to Use the Spaceport Trench Tower Key

North & South Trench Towers (Spaceport Map)

The Spaceport Trench Tower Key is used on the Spaceport map, specifically in the northern section of the area.

Exact Location

• Found between the West Hangar and East Hangar

• Two adjacent buildings:

  • North Trench Tower

  • South Trench Tower

Both towers are visually similar and sit close together, but they are separate locked rooms.

⚠️ Important: One key opens only one tower. Choose carefully.

Reaching the Trench Towers Safely

The Spaceport is one of the largest and most dangerous maps in ARC Raiders. Depending on your spawn, reaching the Trench Towers often requires a long traversal through hostile territory.

Threats You’ll Encounter

• ARC machines patrolling open areas

• Sniper sightlines near hangars

• High likelihood of PvP encounters

Survival Tips

• Avoid sprinting through open tarmac areas

• Use cover-heavy routes near hangar walls

• Scout with audio cues before approaching the towers

If possible, approach slowly and clear the area before using your key.

What Loot Is Inside the Trench Towers?

Both the North and South Trench Towers share nearly identical interiors.

Ground Floor Loot

• Multiple drawers and containers

• High chance of Epic-tier resources

• Crafting materials used for advanced upgrades

Upper Floor Loot

• At least one weapon crate

• Smaller containers with elevated loot tables

• Strong chance for Epic-quality or Tier 4 weapons

Overall, these towers are among the most rewarding single-key loot rooms in the game.

Best Time to Use the Spaceport Trench Tower Key

To maximize value, timing matters just as much as location.

Recommended Conditions

• Night Raids

• Electromagnetic Storms

Both conditions apply a loot value modifier, significantly increasing your chances of pulling high-end gear from containers and weapon crates.

If you’re risking a rare key, these conditions offer the best return.

How to Get the Spaceport Trench Tower Key

The Spaceport Trench Tower Key is a random drop, meaning it can appear on multiple maps—not just Spaceport.

Best Maps to Farm the Key

Dam Battlegrounds

Focus on quieter residential zones:

• Pale Apartments

• Ruby Residence

• Pattern House

These areas are relatively isolated, reducing PvP risk while still offering strong loot tables.

Buried City

Excellent for key farming due to dense housing:

• Grandioso Apartments

• Houses east of the Abandoned Highway Camp

• Scattered abandoned homes

Residential containers here have a high chance of dropping keys.

Spaceport (If You’re Already There)

Prioritize:

• Arrival Building

• Departure Building

• Control Tower A6 (lobby containers)

These areas are flagged as high-value loot zones, improving key drop odds.

Guaranteed Method: Quest Reward

If RNG isn’t on your side, there’s a guaranteed way to obtain the key.

“Switching the Supply” Quest (Celeste)

• Short quest involving valve interactions

• Takes place in underground Spaceport tunnels

• Rewards the Spaceport Trench Tower Key upon completion

This is the most reliable option if you want the key without repeated farming.

Is the Spaceport Trench Tower Key Worth Using?

Absolutely—but only if you plan smartly.

Worth It If You:

• Enter during Night or Storm conditions

• Have a safe extraction route planned

• Are equipped to defend against PvP encounters

Risky If You:

• Rush during high-population raids

• Open the tower without clearing nearby threats

• Carry too much valuable loot already

Used correctly, this key can dramatically accelerate progression.

Want Faster Progress Without the Risk?

Extracting rare keys and surviving high-value loot runs can be stressful—especially if you’re repeatedly wiped by bad spawns or PvP ambushes. If you’d rather secure progression without the grind, ARC Raiders Boosting at GladiatorBoost can help. GladiatorBoost assists with quest completion, key farming, and high-risk extractions so you can enjoy the best loot without unnecessary setbacks.

Final Thoughts

The Spaceport Trench Tower Key is one of the most valuable keys in ARC Raiders, offering exceptional loot and flexibility. Whether you earn it through farming or quests, using it under the right conditions can net you some of the best gear available on the Spaceport map.

Plan your route, pick the right moment, and extract carefully—because one successful Trench Tower run can change the entire trajectory of your loadout.