ARC Spawns

Dam Testing Annex Key

A Rare Key: where to find it in ARC Raiders, and whether to keep, recycle or sell it.

Unlocks a door in the Testing Annex on Dam Battlegrounds.

Dam Testing Annex Key icon
Use

This is gear, not a material. Equip it or bring it on a raid; only sell or recycle spares.

Quick answer: The quest A Lay of the Land rewards it. Dam Testing Annex Key sells for 100 coins and weighs 0.25 kg.

Sell value
100 coins
Weight
0.25 kg
Stack size
1
Rarity
Rare
Added
launch (base game)

Where to find Dam Testing Annex Key

Quest rewards

What is Dam Testing Annex Key used for?

Nothing in the workshop, projects or crafting recipes needs Dam Testing Annex Key right now. Its value is what it does on a raid or what it sells for.

Other Key items

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Questions

Where do you find Dam Testing Annex Key in ARC Raiders? The quest A Lay of the Land rewards it.

Should I keep, recycle or sell Dam Testing Annex Key? Use. This is gear, not a material. Equip it or bring it on a raid; only sell or recycle spares.

What is Dam Testing Annex Key used for? Nothing needs Dam Testing Annex Key right now; it is worth 100 coins.

How much is Dam Testing Annex Key worth? Dam Testing Annex Key sells for 100 coins.

Values are from the game data, last checked 02/24/2026. Spot something out of date? Tell us.