Starfield Delivering Devils Faction Mission Walkthrough

Hello, Space Explorer, and welcome to our Starfield guides hub, covering everything you need to know in the most expected video game of 2023. Formally announced during Bethesda’s E3 presentation in 2018, Starfield is the biggest and most ambitious project coming from the award-winning creators of The Elder Scrolls V: Skyrim and Fallout 4.

Featuring more than 1,000 planets, Starfield is an action role-playing game offering unparalleled freedom from character creation to exploration, crafting, and researching.

Our Starfield Wiki Hub includes guides covering the trickiest quests you may encounter while exploring the universe developed by Bethesda Game Studios. Additionally, we’ll tell you where to find the best weapons, how to get the rarest natural resources and crafting materials, and how to recruit new companions. So, let’s find out what awaits us amongst the stars.

Updated September 11, 2023

Starfield Delivering Devils is the third UC Vanguard faction mission, where you have to decide how to proceed with the objective of finding Dr. Percival Walker.

Since there has been a rise in Terrormorphs in newer settlements, it is your responsibility to undertake the Delivering Devils mission and transport the sample to Percival Walker in Starfield.

Nonetheless, finding Percival is challenging, and you will face numerous obstacles upon your arrival on Mars.

That’s because the doctor has an unresolved debt with Mars’ Trade Authority. You can choose to clear the debt yourself, modify it, and pay it off, or eliminate the local Spacer Leader and complete some research that will completely cover his debt.

Therefore, in the following Starfield guide, I’ve explained what happens when you complete each objective and why I would choose one over the others.

How to Start the Starfield Delivering Devils Faction Mission

The Delivering Devils mission in Starfield becomes available only after you’ve completed the previous UC Vanguard faction missions: Supra Et Ultra and Grunt Work.

After you return to Commander Tuala and inform him about the Terrormorph situation at the end of the Grunt Work mission, you will automatically start the Delivering Devils and Deep Cover missions.

Your first mission objective is to ask about Dr. Percival Walker at the Trade Authority in Cydonia on Mars.

Your first mission objective for Delivering Devils is to ask about Dr. Percival Walker at the Trade Authority in Cydonia on Mars.

How To Ask About Percival at the Trade Authority in Delivering Devils Mission

After you land on Mars, go through the tunnel and enter the Cydonia – Central Hub through the metal door. Go down the ramp and enter the Trade Authority, the first room on the right side.

Talk to Oktai Enbayar about Dr. Percival Walker, even though he has almost no information about where Dr. Percival might be. At least he will point you in the right direction.

Talk to Oktai Enbayar about Dr. Percival Walker in the Trade Authority.

So, Oktai Enbayar will suggest paying a visit to a bar named “The Sixth Circle” on the lowest level of the Cydonia, where you’ll find a group of miners who might know the actual location of Dr. Percival.

How To Speak to the Miners at the Sixth Circle in Starfield

To proceed with the Delivering Devils mission, head to the Sixth Circle bar. Simply take the elevator in Cydonia down to level P2. Remember this elevator, as you will have to use it a lot during this mission.

Once inside, you will come across some tough-looking guys enjoying their drinks. You may not get any helpful information from the first person you speak to.

Luckily, Lou is the person who knows more about Dr. Percival’s whereabouts.

Before Lou can provide you with answers, you must gain his trust. Your best approach is to inform him that you are a member of the UC Vanguard and that reaching Percival is crucial for the survival of humanity in the galaxy.

Speak with Lou in The Sixth Circle bar to learn more about Dr. Percival location.

Delivering Devils Lou’s Questions and Answers in Starfield

To demonstrate your honesty, you must correctly answer two of his straightforward questions.

  • Q: What is the Vanguard Motto?
  • A: Above and Beyond.
  • Q: What grade did you get in your Entrance Exam? A, B, C, or a D?
  • A: The Vanguard Entrance isn’t graded like that.

Once you answer the questions, Lou will inform you that Percival is in trouble with the Trade Authority.

Percival has accumulated a large amount of debt, and Lou requests that you pay off a portion of it before revealing his whereabouts.

How To Approach the Starfield Delivering Devils Mission

During the Delivering Devils in Starfield, you can approach the mission in three different ways:

  • Pay off Percival’s debt.
  • Change Percival’s debt amount and pay off the remaining amount.
  • Kill The Spacer Leader in the Deep Mines and complete some research that will completely cover his debt.

It may seem simple to pay off Percival’s debt immediately, but it requires a minimum of 21,000 Credits. Personally, I spent nearly all of my earned Credits on a new ship and some gear before the Delivering Devils mission. Even if I had the Credits, I wouldn’t spend them on someone else’s debt.

Suppose you decide to illegally change Percival’s debt amount by breaking into the Trade Authority. In that case, you risk getting caught and facing disapproval from some of your companions due to the immoral nature of your actions.

I recommended killing the Spacer Leader and his gang in the Deep Mines rather than paying off Percival’s debt directly.

Even if you pay off or change Percival’s debt, you must clear the Deep Mines anyway to find and reach Dr. Percival.

Going straight for the Space Leader will save you Credits and maintain a peaceful relationship with the Trade Authority. They will even show some gratitude for clearing the Deep Mines.

So, speak with Cambridge Cooper in The Sixth Circle bar, who will give you the option of going after the Spacer Leader in the Deep Mines.

Speak with Cambridge Cooper in The Sixth Circle bar, who will give you the option of going after the Spacer Leader in the Deep Mines.

How To Kill the Spacer Leader in the Deep Mines in Delivering Devils Mission

If you want to defeat the Spacer Leader in the Starfield Delivering Devils, you must find and reach the Abandoned Mines to the west of Cydonia on Mars.

Even though it will take a while, the journey is simple and can be made on foot.

To defeat the Spacer Leader in the Starfield Delivering Devils, you must find and reach the Abandoned Mines to the west of Cydonia on Mars.

Once you reach the mines, you will come across some small metal structures that are protected by a few Spacers. Clear them out and loot their bodies.

After you enter the Abandoned Mines through the orange metal door, eliminate the group of Spacers until you reach another door, which is the entrance to the actual Deep Mines.

Also, using your Cutter to gather any Aqueous Hematite rocks on your way is recommended, as they will be helpful later on.

Take down the stairs and keep going through the Deep Mines until you come across the Spacer Leader, as shown in the image below.

Keep going through the Deep Mines until you come across the Spacer Leader, known as Spacer Punk.

After dealing with Spacer Leader and his remaining followers, find and enter the small lab where Cambridge Cooper conducted experiments on the Pick-Me-Up drug.

To contact Cambridge in the small lab, use the comms panel on the wall.

To contact Cambridge in the small lab, use the comms panel on the wall.

He will instruct you to insert the Aqueous Hematite sample into the lab’s machine. This is where you’ll need the Hematite I’ve mentioned earlier.

Deposit the sample into the Sample Deposit Slot, wait for the Thresher to complete the analysis, and then collect Cambridge’s research from the Data Collection Slot.

Deposit the sample into the Sample Deposit Slot, wait for the Thresher to complete the analysis, and then collect Cambridge's research from the Data Collection Slot.

After speaking with Cambridge on the intercom, take the Employee Exit Key on the research machine.

This key grants access to the elevator in the same room and allows you to reach Mars’s surface. Take the elevator to unlock the Deep Mines Employee Exit location, as you will have to fast-travel back later.

How To Use Cambridge’s Data to Clear Percival’s Debt in Starfield

Now, fast-travel to Cydonia, take the elevator to the P2 level, and bring the Hematite research to Cambridge Cooper at the Sixth Circle bar.

He will share with you the recipe for the Pick-Me-Up drug, which you can use as leverage with the Trade Authority.

Once you receive the research from Cambridge, head back to Oktai Enbayar on the main floor of Cydonia.

To progress in the Delivering Devils mission, convince Oktai to buy the Pick-Me-Up drug. When he asks what you want in return, ask for Percival Walker’s debt to be cleared.

To progress in the Delivering Devils mission, convince Oktai to buy the Pick-Me-Up drug. When he asks what you want in return, ask for Percival Walker's debt to be cleared.

Oktai will agree to the deal and will also give you a few Credits to avoid any feelings of being shortchanged down the road.

Finally, take the elevator to the P2 level, return to The Sixth Circle, and speak to Lou to begin the final part of the mission.

Where to Find Percival in Starfield Delivering Devils Mission

You can find Percival in the Red Devil’s HQ located in the Abandoned Mines west of Cydonia on Mars.

If you have chosen the path to help Cambridge Cooper and kill the Space Leader, you can fast-travel back to the Deep Mines Employee Exit.

If you have chosen the path to help Cambridge Cooper and kill the Space Leader, you can fast-travel back to the Deep Mines Employee Exit.

You can take the elevator down, turn right after leaving the lab, and follow a massive tunnel that eventually leads to a locked metal door.

Use the Drill Waste Room Access Key that you’ve received from Lou to open the metal door and follow the darker tunnel until you reach the Red Devils HQ.

At the front entrance of the Red Devils HQ, you’ll find Percival. After you inform him about the Terrormorphs, he will guide you to his lab inside.

At the front entrance of the Red Devils HQ, you'll find Percival. After you inform him about the Terrormorphs, he will guide you to his lab inside.

If you mention that Hadrian sent you with the sample, he would like to speak with her later at The Sixth Circle.

After you finish the conversation with Dr. Percival Walker, fast-travel back to Cydonia and take the elevator to P2. Then, have one final conversation with Hadrian and Walker in front of The Sixth Circle bar to end the Delivering Devils mission in Starfield.

If you are searching for the best place to get your information about the game, check out our Wiki Hub Page here.

Hello, Space Explorer, and welcome to our Starfield guides hub, covering everything you need to know in the most expected video game of 2023. Formally announced during Bethesda’s E3 presentation in 2018, Starfield is the biggest and most ambitious project coming from the award-winning creators of The Elder Scrolls V: Skyrim and Fallout 4.

Featuring more than 1,000 planets, Starfield is an action role-playing game offering unparalleled freedom from character creation to exploration, crafting, and researching.

Our Starfield Wiki Hub includes guides covering the trickiest quests you may encounter while exploring the universe developed by Bethesda Game Studios. Additionally, we’ll tell you where to find the best weapons, how to get the rarest natural resources and crafting materials, and how to recruit new companions. So, let’s find out what awaits us amongst the stars.

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Sergiu Trifu
Written by
Sergiu Trifu

Sergiu is the Chief Editor at GameClubz and a Soulslike expert. He is responsible for all FromSoftware game guides and in-depth walkthroughs. Feel free to check his social accounts and the latest video games he works on.

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