Highlights
- To reach the puzzle room, enter through the pipeline tower and follow the underground tunnels in the Dam Battlegrounds.
- You will need four players to complete the puzzle, but you can also use the glitch in the game to complete the puzzle by yourself.
- The final loot room has high-tier gear, including gun cases, container bags, and red lockers, which is the best loot spot in the area.
To find the best high-tier loot spots in Arc Raiders, the controlled access zone puzzle on the Dam Battlegrounds map is the best place. This area has many useful gears, but to unlock it, you need to complete a puzzle to unlock the final door. To complete the puzzle, you need to collect items and use the help of other players to reach the loot area. In this guide, we will show you how to unlock all the doors and solve the Controlled Access Zone puzzle in Arc Raiders.
Unlock All Doors in Controlled Access Zone Puzzle


To reach the puzzle room in the Controlled Access Zone on the Dam Battlegrounds, enter from the Pipeline Tower. Then follow the underground corridor and keep moving through the tunnel to reach the puzzle room.
The First Door



There are two locked doors in the first area. To open the first door in front of you, you need a fuel cell. Look around the building to find a fuel cell and insert it into the controller. As soon as you do that, the first locked door will open, so enter it and loot the room.
The Second Door




To open the second door, you need four players, as you need to press four different buttons at the same time. The buttons are located:
- One button is inside the room you just unlocked.
- The second button is beside a staircase pillar. You will need to carefully jump over the railing to reach it. If you miss, you will fall into the pit.
- The third button is on the left side of the Fuel Cell controller. Be careful here as well.
- The fourth button is in front of the locked door you’re trying to open.
Once everyone is in position, press all four buttons at the same time to open the second door.
The Second Door Glitch

For the second door, you need four players as you need to press multiple buttons at the same time. But if you are playing solo, bring two barricades with you. Go inside the front of the door and place a barricade there. Then you need to roll forward at the same time. If done properly, you will glitch and enter the room without needing four players.
After entering the room, the exit door will not open normally, so you will need another barricade and leave the area using the same method. Once you power on the control panel on the left side of the door, you will be able to unlock the last door and loot the area.
The Final Door

After entering through the second door, you will find another locked door inside. To open it, you need to repair it by looking at the panel on the left side of the door. It will show you which items you need. The problem is that the required items are different every time you do the puzzle.
It can ask for anything, so make sure to check the panel and bring whatever item it shows before trying to unlock it. Below in the table are the possible items that you will need to repair the door.
| Scenario | Item 1 | Item 2 |
| Scenario 1 | 1× Motor | 12× Scrap Metal |
| Scenario 2 | 1× Industrial Battery | 3× Batteries |
| Scenario 3 | 1× ARC Performance Steel | 3× ARC Powercell |
| Scenario 4 | 1× Leaper Pulse Unit | 6× Wires |
After placing the required items in the panel, the final door will unlock. Inside the final room, you will find gun cases, container bags, and many red lockers. The loot here is high-tier gear, which is very useful to upgrade your gears in Arc Raiders.
FAQs
- Can you complete the Controlled Access Zone puzzle alone?
- Yes you can complete the puzzle in alone by using the barricade glitch to enter the final room.
- Where can you find the fuel cell for the first door?
- The fuel cell is found around the building, in the Swamp area or on the staircases.
- Are the required items for the final door the same every time?
- No, the repair items are random in every raid, so check the panel beside the door to see the items that you need.
