The Outer Worlds - Errors Unseen Quest (Walkthrough Guide) (2025)

The Outer Worlds Guides:

• Drinking Sapphire Wine Companion Quest.
• The Commuter Faction Quest.
• The Ice Palace Faction Quest.
• Mandibles of Doom Quest.
• Signal Point in Space Quest.
• Slaughterhouse Clive Quest.
• The Low Crusade Quest.
• Rest-n-Go-Keycard Locations.
• Poster Locations.

Errors Unseen is one of the Faction Quests in The Outer Worlds. Faction Quests are optional quests that players can chose to complete in order to obtain special rewards, XP, and reputation with a given Faction.

Errors Unseen Objectives

Follow up with Catherine Malin

Sanjar believes Catherine would know where this other corporation is operating. See if you can get the location from her.

Investigate the Drop-Off Point

Someone hired Catherine’s team to make blind supply drops at the bridge north of Fallbrook. Investigating the area may lead you to the proof you need

Follow the Trail of Blood

Someone survived the attack at the drop point. Follow the blood trail to see if you can learn more.

You found Arthur, a SubLight courier, and learned that his team was attacked by marauders.

Recover Proof of Corporate Presence on Monarch

From Arthur, you learned that the marauders who attacked came from a location up the hill, west of the bridge. If the marauders found the shipments, perhaps they can lead you to the secret facility, too.

Maybe the Scientists could provide testimony…

Never mind.

Return to Sanjar with the Data Cartridge

You have evidence that UDL has been secretly developing a crowd control gas on Monarch. This is the proof Sanjar needs to make his appeal to The Board.

Errors Unseen Walkthrough

Talk to Sanjar after completing BOLT with His Name. He reveals the plan is to blackmail The Board into letting them back to the table. Sanjar will reveal he believes another corporation is operating illegally within Monarch, granting you the quest Errors Unseen. He will tell you Catherine is likely supplying them from Fallbrook. He wants you to infiltrate the secret facility and bring back evidence – be it an item or staff.

Head to Fallbrook, south of Stellar Bay, and talk to Catherine Malin. She will say “maybe” one of her teams were hired for a drop-off and have gone missing, and offer to pay you handsomely if you find them. You can also get this information by pickpocketing her keycard and using her terminal.

Head north from Fallbrook and you will find the Drop-off point along the road. The road is a dead end – there will be two Mantiqueen and several Mantisaur on the way. You’ll meet Weston Sloan by the broken bridge heading north. The drop point is on the lower level under the broken bridge – this unlocks the location “Blown Bridge”. Inspect the loader to gain 5625xp and then follow the trace of blood west toward the Smuggler Tunnel.

Within the tunnel, beware of several electric traps and mines, and make your way to Arthur. You can use medical (40) to have a look at his wounds, and some Sublight Salvage & Shipping reputation. You can then ask him what happened, or reveal Catherine told you to come. He will say there ambushed by Marauders, who seemed to know where the meeting would take place. He’ll tell you which way they went, and you can get 5625xp for this step.

The Marauders headed West from this location, up a hill past some Mantisaur and Mantiswarm. You will arrive at UDL Lab location. The Marauders have a group of scientists rounded up, and promptly kill them. Defeat the Marauder and Canid enemies. Inside the building, several more Marauders await alongside their Ringleader. You can pick up UDL Lab Weapons Terminal Keycard from a table on the second floor, where you kill the ringleader. Access the terminal on the other room of the second floor and transfer files to external tape to bring evidence of UDL’s Lorem Ipsum project. Gain 5625xp and UDL Research Data quest item.

You can bring the UDL Lab Weapons Terminal Key Card to the 1st floor and interact with a terminal. You can unlock the weapon they have been developing with Hack (55) or answer: Protect the Chairman, answer: Berate him relentlessly to defend the Chairman’s honor, answer: Arrest your spouse and admit your children to a reeducation program. You can now pick up Gloop Gun, a Science Weapon part of the Weapons From the Void Quest.

Go northwest and you’ll come to a closed Gate. Unlock it with the nearby terminal to make access easier in the future. Go North toward Stellar Bay and you’ll come across a Marauder Camp. Kill them and then talk to Lenora Talley, who is a prisoner here. This will unlock her as a vendor near Fallbrook.

Return to Stellar Bay and talk to Sanjar Nandi at his office. Ask him what the reformations are, and he will reveal he is planning to reformat The Board, but slowly and from within. Nyoka expresses concern about what will happen to Amber Heights and Fallbrook.

If you give Sanjar the data, the quest will complete, giving you 15000xp, 2188 Bit Cartridge, MSI Elite Armor and Monarch Stellar Industries Reputation.

Return to Catherine Malin at Fallbrook and tell her about Arthur in the cave – you’ll get SunLight Salvage & Shipping Reputation.

Errors Unseen Rewards

• Unlocks quest:
• Other Rewards: 15000xp, 2188 Bit Cartridge, MSI Elite Armor and Monarch Stellar Industries Reputation.