ARC Raiders Spaceport Trench Tower Key Guide: Location, Uses & How to Get It

Where to Use the Spaceport Trench Tower Key in ARC Raiders

Keys in ARC Raiders unlock some of the game’s most valuable loot, and the Spaceport Trench Tower Key is among the most sought-after. Unlike standard locked doors requiring puzzle solving (like the Ancient Fort cellar door), the Spaceport Trench Tower Key provides direct access to a two-story tower on the north section of the Spaceport map, packed with high-tier weapons, blueprints, and rare components. This key is specifically designed for the North Trench Tower location, where tech components, Rocketeer Drives, and weapon caches await—making it a critical farming tool for endgame progression.

Finding and using the Spaceport Trench Tower Key requires both knowledge and strategy. The key spawns randomly across the Dam Battlegrounds map (particularly at Ruby Residence and the Research & Administration building), but knowing where to use it is equally important. This guide covers the exact location of the North Trench Tower door, what valuable loot you’ll find inside, the fastest farming routes to obtain the key, and pro strategies to maximize your rewards while surviving PvP threats. Whether you’re a new player seeking your first key-locked loot or a veteran farmer optimizing your runs, this complete walkthrough ensures you never waste extraction space again.

North Trench Tower Door Location on Spaceport Map

The door you’re looking for is located at the North Trench Tower in the Spaceport map. This tower sits in the northern section of Spaceport, positioned between the West and East Hangars—you can’t miss it once you’re in the general area.

Getting There:

Spaceport is one of the larger maps in ARC Raiders, so be prepared for a substantial journey from your spawn point. The trek to North Trench Tower typically involves:

• Navigating through open areas with limited cover
• Encountering multiple ARC machines (Sentinels, Leapers, and sometimes Barons)
• Potential PvP encounters with other players hunting the same loot

Pro tip: If you’re playing solo, consider taking a longer route that avoids the main traffic areas around the hangars. Squad players should designate one person as lookout while others handle navigation.

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What’s Inside the North Trench Tower?

Once you use the Spaceport Trench Tower Key on the keypad, you’ll gain access to a two-level tower with some genuinely impressive loot distribution.

Ground Floor Loot:

• Multiple lootable containers and drawers
• High chance of Epic rarity resources (crafting materials, Mechanical Components, etc.)
• Various consumables and utility items

Upper Floor Loot:

• One weapon crate (guaranteed weapon blueprint or fully-built weapon)
• Additional smaller crates with high probability of Epic quality items
• Possible Tier 4 weapons (some of the best equipment in the game)

The upper floor is where the real prize sits. Tier 4 weapons and Epic blueprints are exactly what you need to dominate both PvE and PvP encounters. If you’re working on upgrading your weapons through the Gunsmith system, the blueprints from this tower are invaluable.

Important: Always store your best find in your Safe Pocket immediately after looting. North Trench Tower is a hotspot for player ambushes since everyone knows what’s inside.

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How to Get the Spaceport Trench Tower Key

There are two main ways to obtain the Spaceport Trench Tower Key: random world drops or quest completion. Let’s break down both methods.

Method 1: Random Loot Drops (The Farming Route)

The Spaceport Trench Tower Key can spawn as random loot in high-value residential and administrative buildings across all maps. That’s right—you don’t need to be on Spaceport to find this key, which actually makes farming more flexible.

Best Locations to Farm the Key:

Dam Battlegrounds:

• Ruby & Pale Apartment Complex
• Research & Administration Building

Blue Gate:

• The Village
• Reinforced Reception

Buried City:

• Santa Maria Houses
• Space Travel Building
• Grandioso Apartments

These locations are all classified as high-tier loot zones, meaning you’ll face stiff competition from other players. The key spawns in the same loot pool as other valuable items, so it’s really a matter of checking multiple containers and hoping RNG is on your side.

Farming Tips:

• Hit residential areas first—they tend to have more searchable containers per square meter
• Check filing cabinets, lockers, and drawers thoroughly
• If you’re farming coins fast, you can recycle or sell items you don’t need while hunting for the key

Method 2: Complete “Switching the Supply” Quest (Guaranteed Drop)

If RNG farming isn’t your style, there’s a much more reliable way to get the Spaceport Trench Tower Key: complete the Switching the Supply quest given by Celeste.

Quest Overview:

This is a relatively straightforward quest that takes place in the Spaceport underground tunnels. Your objective is to locate and turn several valves in the tunnel system. The quest doesn’t take long—maybe 10-15 minutes if you know where you’re going—and rewards you with the Spaceport Trench Tower Key upon completion.

For a detailed walkthrough of this quest, check out our Switching the Supply complete guide.

Why This Method is Better:

• Guaranteed reward (no RNG involved)
• Quest can be completed relatively quickly
• You’ll gain XP and quest progression alongside the key
• Safer than repeatedly raiding high-traffic loot zones

If you’re working through Celeste’s quest line anyway, this is absolutely the route I’d recommend. The tunnels can be tricky to navigate, but once you learn the layout, subsequent runs become much faster.

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Strategy Tips for Using the Spaceport Trench Tower Key

Timing Matters: Don’t rush to North Trench Tower immediately after spawning. Wait until the mid-to-late game when player populations have thinned out. Early-game traffic around Spaceport is brutal.

Go in Prepared: Bring adequate healing items, shield recharges, and ammunition. You’ll likely fight ARC machines on the way, and there’s always a chance of player encounters.

Loot Efficiently: Once inside, grab the upper floor weapon crate first (it’s the most valuable), then work your way down. Don’t spend more than 2-3 minutes inside the tower.

Plan Your Extraction: Before entering the tower, identify your nearest extraction point. If you have a Raider Hatch Key, even better—you’ll have a guaranteed escape route.

Squad Coordination: If playing with teammates, position one player outside as overwatch while others loot. The tower entrance is a natural chokepoint that’s easy to camp.

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Making the Most of Your High-Tier Loot

Once you’ve successfully looted North Trench Tower and extracted, you’ll want to make the most of your haul:

For Blueprints:

• Take them to your Gunsmith for weapon upgrades
• Consider which blueprints are worth farming for future runs

For Resources:

• Use Epic materials to upgrade your workbench
• Store excess materials in your expanded stash space

For Weapons:

• Equip immediately if it’s better than your current loadout
• Alternatively, sell or recycle for coins to purchase other gear

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Related Quest Content & Key Guides

Looking for more key locations and quest guides? Check these out:

• Dam Control Tower Key Location & Uses
• Dam Surveillance Key Location & Uses
• Blue Gate Confiscation Room Key Location
• Hatch Repairs Quest – Raider Hatch Locations
• All Quests & Missions Complete List

For additional map-specific content:

• Complete Loot Table & Resources Farming Guide
• Best Tips & Tricks for Survival

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Final Thoughts on the Spaceport Trench Tower Key

The Spaceport Trench Tower Key is absolutely worth pursuing, whether through random farming or quest completion. The loot inside North Trench Tower can significantly boost your loadout, especially if you’re still building up your arsenal in the early-to-mid game.

My personal recommendation? Complete the Switching the Supply quest for the guaranteed drop, then use the key during a quieter moment in your next Spaceport run. The Epic weapons and Tier 4 gear inside can be game-changers, but only if you survive long enough to extract with them.

Available Now:

• PlayStation Store
• Xbox Store

Happy raiding, and remember—always check your surroundings before using that key. Nothing ruins a perfect loot run like getting ambushed at the extraction point!