This guide covers the locations of all of the collectible Servo Skulls which are located in Chapter 7: “Heart of Darkness” in Warhammer 40,000: Space Marine.

All of the 48 servo skulls in the game are located throughout the various levels, typically in out of the way locations, with each providing some form of back story and lore to the events taking place. This comes in the form of short recordings left by other people on the forge world. Collecting all of these, besides providing interesting information, contributes towards unlocking special achievements.

You can find additional guides covering where to find the rest of the Servo Skulls from the main index here.

Chapter 7: “Heart of Darkness” Servo Skulls


  1. Duty Log: Transmechanic Petronius [2/5]
  2. Audio Log: Medicae Station Ventris [3/5]

1. Duty Log: Transmechanic Petronius [2/5]

In the early portions of Chapter 7, you’ll find yourself fighting Orks in a series of tunnels that open up to some larger big battle rooms. This will happen once, then a second time after going through some smaller sewer tunnels. Once you have cleared out the enemies of the second of these two big battle rooms, you’ll have a pair of small sewer tunnel exits at the far end. The one on the right is the path that takes you further into the chapter, however you should take the left entrance first, which should have a small fire burning right next to it, checking inside and directly to the left for the first of the two servo skulls in this chapter.

“I was right! For days, I tracked that signal coming from beyond the sun. I didn’t tell Transmechanic First Class Aleric because I didn’t want to be ridiculed. And today I heard voices — the signal’s an Ork fleet heading straight for Graia! That’s when I told Aleric. You should of seen the shock on his face. If he’d believed me a week ago, we would have had that much more warning. He was wrong — I was right. Finally.”

2. Audio Log: Medicae Station Ventris [3/5]

A short time after finding the first skull, you’ll finally end up leaving the sewer tunnels after acquiring the Meltagun, ending up on a catwalk in a more open room. Look to the left just as you exit the last bit of tunnel and you’ll find an explosive barrel laden Ork Barricade, which you can blow up to reach the second and last servo skull in this chapter, right behind it.

Dominus: “– we’re almost out of sterile dressings. I haven’t even begun treating the new burn victims yet.”
Cassia: “You can’t treat them. Give them something for pain. But that is all.”
Dominus: “I am a Magos Biologis. No wound or malady is beyond me -“
Cassia: “You are in a triage situation. Observe, analyze and decide who we can save.”

“Heart of Darkness” Servo Skulls Video Guide

Last Updated on October 4, 2020 by Standard of Entertainment