ARC Raiders Ruins and Reverberations Quest Guide: Complete All Objectives

The Ruins and Reverberations quest in ARC Raiders sends players to the new Pendola Pass map, where they must restore an abandoned communication system at the Cielo Sereno Observatory.

The mission is relatively short, but finding the correct antenna and the hidden wiring area can be confusing if you're visiting the location for the first time.

Here's a complete step-by-step guide to finishing the quest and collecting its rewards.

What You Need Before Starting

Before heading into Pendola Pass, make sure you have a Spotter Relay.

You can obtain a Spotter Relay by defeating Spotters and looting them. It's a good idea to place the item in a Safe Pocket before entering the map so you don't risk losing it during the run.

You'll also need to reach the Cielo Sereno Observatory, located in the northeastern section of Pendola Pass.

Unlike some other Pendola Pass objectives, the quest doesn't require special climbing equipment. The observatory has a fixed ladder that can be used to reach its roof.

Step 1: Reach Cielo Sereno Observatory

Load into Pendola Pass and make your way toward the Cielo Sereno Observatory.

Be careful when approaching the area. The location can have a higher threat level, and ARC enemies may be present around the observatory.

Once you reach the building, look for the fixed ladder on the eastern side. Climb it to reach the roof.

Step 2: Connect the Spotter Relay

After reaching the roof, move toward the western side of the observatory.

You'll find an antenna there. Interact with it and install the Spotter Relay you brought with you.

This completes the first objective, but the relay won't work yet because power needs to be restored.

Step 3: Find the Crawlspace

Return to the interior of the observatory.

Go toward the control room and look for an opening in the floor. Drop through the hole to enter the crawlspace underneath the control room.

Once inside, move through the narrow passage until you find the wiring panel.

This part can be easy to miss, so make sure you thoroughly check the area underneath the control room.

Step 4: Repair the Wires

Interact with the wiring panel inside the crawlspace.

Your objective is to weld the wires and redirect power to the Spotter Relay.

After completing the repair, the electrical system will be restored.

Step 5: Activate the Spotter Relay

Once you've repaired the wiring, return to the observatory roof.

Go back to the same antenna where you installed the Spotter Relay.

Interact with it again to activate the relay.

After the activation is complete, the Ruins and Reverberations quest will be finished.

ARC Raiders Ruins and Reverberations Rewards

Completing the quest provides several useful rewards:

• 2× Smoke Grenade
• 1× Looting Mk. 3 (Safekeeper)
• 3× Electrical Components
• 2× Speaker Components
• 5,000 XP

Players also receive a Grappling Hook from Celeste when accepting the quest.

Tips for Completing the Quest

Although the mission itself is straightforward, Pendola Pass can be dangerous.

Here are a few tips:

Bring the Spotter Relay Before Entering

Don't enter the map without the required item. Spotters can be defeated to obtain the relay, but collecting one before starting the mission saves time.

Use a Safe Pocket

The Spotter Relay is required for the quest, so storing it in a Safe Pocket can help prevent losing it if your run goes badly.

Watch for ARC Enemies

The observatory can have dangerous ARC machines nearby. Avoid unnecessary fights if you're only trying to complete the quest.

You Don't Need a Grappling Hook

The roof can be reached using the fixed ladder, so you don't need special climbing equipment for this particular mission.

Final Thoughts

The Ruins and Reverberations quest is one of the more straightforward missions introduced with the ARC Raiders Frozen Trail content. The main challenge is locating the antenna and finding the crawlspace beneath the observatory's control room.

Bring a Spotter Relay, travel to Cielo Sereno Observatory, install the relay, repair the wiring below the control room, and return to the roof to activate it.

Once the final interaction is complete, you'll receive the quest rewards and can continue progressing through the Pendola Pass questline.