Hidden Bunker in Arc Raiders – Puzzle Event Explained

Hidden Bunker in Arc Raiders is a newly introduced Map Condition that challenges players with a multi-step puzzle located on the Spaceport Map. Below is a concise breakdown of the community’s current understanding of how it works:

• Activate all 4 Antennas spread across the edges of the Spaceport Map (Ziplines are recommended)
• Head to the Hidden Bunker on the south-west side of the Spaceport Map (details provided below)
• Inside the bunker, interact with all 8 Data Terminals to initiate Data Downloads
• After the download finishes, Retrieve the Data from each Terminal

How to do the Hidden Bunker in ARC Raiders

A fresh “Map Condition” has arrived in ARC Raiders, and this one turns the entire lobby into a race against time. Everyone is sent scrambling across Spaceport to uncover and unlock the mysterious Hidden Bunker. The twist? You’ll need to complete multiple dangerous tasks before you can claim whatever waits inside.

This isn’t your usual loot sweep—it’s a coordinated puzzle that practically demands teamwork. Below, we’ll guide you through how to open the Hidden Bunker on Spaceport and what to expect once you access it.

Recommended Preparation

This event is chaotic and competitive. Every player in the lobby will be going after the same objective, so going in with the right equipment and mindset is crucial. Unless you know the mechanics extremely well, avoid playing as a hostile solo—cooperation massively increases your odds of success.

• Bring Utility: Antennas may spawn behind Locked Doors. Make sure you carry Ziplines so you can reach them without wasting time.
• Prepare for Combat: Expect heavy resistance from ARC drones and rival Raiders. Bring strong armor, dependable weapons, and plenty of healing items.
• Study the Map: Use the Map to spot potential antenna spawns and pre-learn the bunker’s location before deploying.

Step 1: Activate the Four Antennas

To unlock the bunker, you’ll first need to activate four antennas scattered around Spaceport. These are clearly marked on your in-game map with a white satellite symbol, making them easy to locate. While we’ve shown an example location below, the actual antenna spawns can vary each raid.

Once you activate an antenna, two things happen instantly:

• The entire lobby is alerted that you activated that particular antenna.
• ARC enemies will rapidly deploy and begin attacking your position.

This is where teamwork becomes invaluable. Whether you’re pairing up with other solos or running with a dedicated squad, having backup makes fighting off ARC drones far more manageable.

Step 2: Find ARC Raiders Hidden Bunker Location

After all four antennas have been activated, everyone in the match will see a new notification: “The Hidden Bunker is now open.” However, the game won’t show the bunker’s location on any map.

The bunker can be found between the Fuel Lines and Fuel Processing POIs. Even though it’s described as “hidden,” the massive industrial hatch stands out against the sand. Once the antennas are complete, immediately make your way there. There are several entrances, but all are situated close together.

Step 3: Download Data during the Hidden Bunker Event (Once unlocked)

Entering the bunker is only part one. Inside, you’ll find eight data terminals—each with a small indicator light above it. Your task is to download the data from every single terminal.

To download, interact with an active terminal and remain near it until the transfer completes. According to current community findings, a single player must retrieve all data files from all eight terminals. Assign one teammate as the “data carrier” while the rest defend the room and secure all entrances.

Once the data from each terminal has been retrieved, the next stage of the puzzle is still undetermined. The ARC Raiders community is actively working together—primarily through the official Discord—to uncover the remaining steps. This has quickly become one of the most exciting collaborative challenges Embark Studios has added to the game.