What is the Dam Testing Annex Key? The Dam Testing Annex Key is a rare key in Arc Raiders. Its primary function is to unlock doors inside the Testing Annex area of Dam Battlegrounds. It’s lightweight (0.25) and cannot be stacked, so you can only carry one per inventory slot. In gameplay terms, the key allows access to two locked doors inside the building. Keep in mind that each key only unlocks one door. So if your goal is to open both doors during a single run, you’ll need to bring two keys. Where are the doors located? Both doors are on the ground floor of the Testing Annex:
South side door: This is usually the first one players encounter when entering the Annex from the main entrance. It’s often guarded by minor NPCs or environmental hazards, so expect some resistance.
East side door: A little more hidden, tucked in the corner of the Annex. Players often overlook this door on their first visit.
In practice, players often prioritize the south door first because it tends to contain higher-value loot in its vicinity. The east door is better if you’re exploring or trying to complete objectives that require accessing multiple areas. How do you get the key? There are a few ways to obtain the Dam Testing Annex Key:
Quest Rewards: Completing the quest A Lay of the Land guarantees one key. This is the most straightforward method if you’re actively pursuing story or mission objectives.
Scavenging: Keys can spawn randomly in loot containers. Check lockers, drawers, and filing cabinets around Dam Battlegrounds. Players often miss keys on initial runs because they are tucked away in less obvious containers.
In general, loot spawns for keys are random, so scavenging requires patience. Some players will do multiple runs in a single session just to acquire an extra key. If you’re looking to save time or stock up, you might consider options to buy arc raiders items for cheap prices, which can sometimes include keys or other mission-critical items. This can be particularly useful for players who are focused on completing all Testing Annex objectives efficiently. Can you carry multiple keys? Technically, yes, but each key only unlocks one door. That means:
One key = one door
Two keys = both doors
In practice, most solo players carry a single key and pick which door to prioritize. Teams often split the keys among members so that both doors can be accessed simultaneously, which is especially helpful for timed objectives or when the area is heavily contested by enemies. What’s behind the doors? The doors in the Testing Annex generally lead to:
South Door: Loot-rich areas, including higher-tier loot containers. Players often find lockers and filing cabinets with rare gear and crafting materials.
East Door: More modest loot, sometimes containing mission-critical items or components needed for objectives. This door can also act as a strategic entry/exit point when clearing the Annex.
Understanding the relative value of each door helps in deciding which one to unlock if you only have a single key. How do players usually approach unlocking doors? From experience, players tend to follow these patterns:
Solo runs: Pick the door that aligns with your immediate objective. Usually the south door for loot farming.
Team runs: Divide keys between team members. One player opens the south door while another handles the east door. This ensures maximum loot access and reduces backtracking.
Timing: Don’t rush the door immediately. Some players scout the area first to ensure that enemies or environmental hazards don’t trap them while unlocking.
The key usage is instantaneous, so there’s no prolonged animation, but enemies can interrupt your approach if you’re not careful. Tips for using the key efficiently
Scout first: Know which door you’re opening and what’s behind it. This reduces risk of losing the key unnecessarily.
Coordinate in squads: If you’re with friends or AI teammates, assign keys strategically. Two doors can be opened at once without splitting up.
Check loot containers nearby: Once a door is open, look for lockers, drawers, and filing cabinets immediately. Many players miss items when they’re focused on combat.
Reuse knowledge of spawn points: Keys and doors are consistent in their locations. Memorizing them helps speed up runs and reduces time wasted searching.
Common mistakes to avoid
Carrying only one key for both doors: Remember, each key opens only one door. If you plan to access both, make sure you have two keys before entering the Annex.
Ignoring the east door: It may seem less valuable at first, but some players overlook mission-critical loot in that area.
Rushing through: Opening doors without scouting can lead to traps or heavy combat encounters that might cost you more than the loot is worth.
The Dam Testing Annex Key is straightforward in purpose but requires careful planning in practice. Each key opens one door, and both doors have unique loot and strategic advantages. Solo players should focus on the south door for higher-value loot, while teams can maximize efficiency by splitting keys. Remember to check lockers, drawers, and filing cabinets for the best scavenging results. Understanding key location, door placement, and practical use ensures you get the most out of your runs in Dam Battlegrounds. With careful preparation, you can make every key count. Il Toro II | All Platform