How to Complete the Controlled Access Zone Puzzle - Arc Raiders Guide

Arc Raiders is a game built around survival, teamwork, and high-stakes looting, and few challenges reward players as well as the Controlled Access Zone puzzle. Found on the Dam Battlegrounds map, this multi-step puzzle locks a high-value loot room behind coordination, resource gathering, and precise execution.

Unlike simple solo challenges, the Controlled Access Zone puzzle is designed for teamwork-you can't solve it alone. This guide breaks down every step, from preparation to looting, so you and your squad can unlock its rewards without frustration.

1. Locate the Controlled Access Zone

First, you need to find the puzzle's location. The Controlled Access Zone is a marked high-value loot area on the Dam Battlegrounds map, added as part of the game's dam update content. It's easy to spot on your map, often near the pipeline tower or breach area of the dam.

The zone has multiple entry points to suit different approaches. You can take upper routes through damaged sections of the dam, side paths along the dam structure, or lower walkways that lead to the zone's interior corridors. Once inside, you'll enter a large indoor space-look for a secured door with four indicator lights above it; this is the gateway to the puzzle and the hidden loot room.

2. Prepare Before You Start: Squad and Materials

The biggest mistake many players make is attempting the puzzle without proper preparation. This challenge is not designed for solo players or small squads-you need a full team of four raiders. Here's why: the puzzle requires all four buttons to be pressed simultaneously, and a smaller squad can't cover all positions.

You'll also need specific ARC Raiders Materials to progress past the first door. Gather these before entering the zone to avoid wasting time searching under pressure:

12x Metal Parts: Common crafting materials, but you'll need a large stack to repair the final control panel.

1x Industrial Battery: Used to power the control panel after unlocking the first door.

1x Fuel Cell: Critical for opening a sealed room that contains one of the puzzle's buttons.

Pro tip: Bring these materials with you when you start the raid. Scavenging for them inside the zone can leave your squad vulnerable to enemy attacks or third-party raiders.

3. Step 1: Find and Use the Fuel Cell

Once your squad is inside the Controlled Access Zone, your first task is to locate the Fuel Cell. Its spawn location varies per raid, but it's almost always on the bottom floor of the zone. Check corners, near wall panels, and around large yellow structures-these are common spawn spots.

The Fuel Cell is a physical item you'll need to pick up and carry. Be careful while transporting it: holding the item limits your ability to fight, making you an easy target for ARC machines or enemy raiders.

Carry the Fuel Cell to the upper floor, where you'll find a generator or terminal with a clearly marked slot. Insert the Fuel Cell here to unlock a sealed room-this room contains one of the four buttons you'll need to press later.

4. Step 2: Locate All Four Buttons

With the sealed room open, it's time to find all four buttons. Their exact spawn positions change each raid, so split up your squad to search efficiently-but stay in communication to avoid getting separated.

Focus your search on key areas: stairways, upper platforms, pipe-lined sections, and the newly unlocked room from the Fuel Cell step. One button is always near the generator where you inserted the Fuel Cell, making it easy to find first.

Each button is small but noticeable-look for glowing indicators or interactive prompts. Mark each button's location on your map so your squad can quickly reach their assigned positions later.

5. Step 3: Press the Buttons Simultaneously

This is the most critical step in the puzzle, and it requires perfect coordination. Assign one player to each button-make sure everyone knows their position and can reach it quickly.

Communication is key here. Use voice chat to count down ("3, 2, 1-press!") so all four buttons are activated at the exact same time. If even one button is pressed late or out of sequence, the puzzle resets, and you'll have to try again.

When done correctly, the secured door with the four indicator lights will unlock. This is a big win, but it's not the end of the puzzle-there's one more step to access the loot room.

6. Final Step: Repair the Control Panel

Behind the unlocked door, you'll find a damaged control panel. This is where your pre-gathered materials come into play. To repair it, you need to deposit 12 Metal Parts and 1 Industrial Battery into the panel's terminal.

Once you submit the materials, the system will power up, and the final loot room door will open. This room is worth the effort: it contains multiple containers, weapon crates, and even rare items like mythic blueprints.

7. Tips for Success and Avoiding Mistakes

Even with the steps above, the Controlled Access Zone can be risky. Here are some tips to ensure your squad survives and secures the loot:

Clear enemies first: Before starting the puzzle, eliminate any ARC machines or enemy raiders in the area. Fighting while trying to coordinate button presses is a recipe for failure.

Watch for betrayals: Once the loot room opens, cooperation often ends. Be ready for other squads to ambush you-stay alert and keep your weapons ready.

Don't linger: The zone is a high-traffic area. Once you've looted the room, plan your evacuation immediately to avoid getting trapped by third parties.

Adapt to randomness: Remember that button and Fuel Cell spawns vary per raid. Stay flexible and communicate with your squad to adjust your strategy.

Conclusion

The Controlled Access Zone puzzle is one of Arc Raiders' most rewarding challenges, but it requires teamwork, preparation, and precision. By following this guide-locating the zone, gathering materials, coordinating button presses, and repairing the control panel-you and your squad can unlock some of the best loot on the Dam Battlegrounds map. If successful, players will receive a large amount of resources, such as rare cheap ARC Raiders BluePrints, ARC Raiders Coins, materials, and more!

Take your time, communicate clearly, and stay alert. With a little practice, you'll master this puzzle and turn it into a reliable source of high-tier gear in every raid.