Chapter 6: Environmental Hazard contains 35 Collectible Locations in Dead Space Remake. This walkthrough is updated for the PS5 Remake version and will guide you to all collectibles in Chapter 6: Environmental Hazard in chronological order. Everything that’s needed for trophies and 100% completion is included: Logs, Schematics, Weapons, Weapon Upgrades, Suit Upgrades, Nodes, Side Missions, Chapter-Specific Trophies, Marker Fragments.
Everything located on the USG Ishimura is unmissable until the Point of No Return at the end of Chapter 11: Alternate Solutions, except for a small number of action-dependent logs that only trigger when doing certain actions at specific story points. The guide will list everything when it first becomes available in an efficient order, but if you miss anything you can go through the Ishimura when you have full access in Chapter 11. Everything in Chapter 9: Dead On Arrival is missable, so be sure to collect everything during this chapter. Marker Fragments are only available in New Game+. You can still grab missing Collectibles in New Game Plus, all progress carries over.
Collectibles Overview:
Chapter 6: Environmental Hazard Collectibles
Log 84 – Hydroponics Access
Story-related. Automatically at the beginning of the chapter.
Node 23
On the wall in the hallway next to Cryogenics Control Room.
Log 85 – A Tissue Sample (Side Missions) / Side Mission 3 – Premeditated Malpractice
Grab the Tissue Sample from inside the Cryogenic Chamber.
Side Mission 3 – Premeditated Malpractice Step 1+2
Before continuing forward, track the new side mission, press 
to be shown the path, and complete the first two steps (scan the tissue sample in Main Lab and watch the recording in Intensive Care Unit). Then return to where you started the chapter.
Node 24
Go to tram station and take the tram to “Hangar-Cargo-Tram Control”. After arriving, enter the left door, take a left turn in the hallway, after the hallway enter Tramway Storage Room. Requires Security Clearance Level 1.
Log 86 – Find a Workstation
Story-related. Automatically as you approach Hydroponics Tram Station.
Log 87 – Cross’s Log 01
Immediately in front of you upon entering Hydroponics Tram Station.
THE NEXT TWO LOGS CANCEL OUT EACH OTHER (CAN ONLY GET ONE OR THE OTHER – MUST GET THE OTHER ONE IN NEW GAME PLUS):
[MISSABLE] Log 88 – Go to Food Storage
In Hydroponics Central Hub, you get this via a call if you DO craft the Enzyme Syringe FIRST in the room “Hydroponics Central Hub” BEFORE entering the next room called “Food Storage”. Cancels out the next log “Inject the Wheezers” (must do the opposite in New Game Plus to get it).
[MISSABLE] Log 89 – Inject the Wheezers
In Hydroponics Central Hub, you get this via a call if you DON’T craft the Enzyme Syringe in the room “Hydroponics Central Hub”. Ignore it, and instead go to “Food Storage” FIRST. Reach the very end of Food Storage where there’s a locked door, then you get a lengthy video call which automatically gives Log 88 “The Leviathan”. After this backtrack to Hydroponics Central Hub and craft the Enzyme Syringe SECOND. After crafting it you get the “Inject the Wheezers” log. Cancels out the previous log “Go to Food Storage” (must do the opposite in New Game Plus to get it).
Log 90 – The Leviathan
Story-related. Automatically as you approach Food Storage (doesn’t matter if you crafted the enzyme first or went to food storage first, you always get this log regardless via video call).
Weapon Upgrade 9 – Angled Launcher (Ripper)
On the desk inside B. Andonov’s office, which is the first office on the left in Flow Control.
Log 91 – Cross’s Log 02
On the wall of West Grow Chamber, outside West Seedling Room B.
Weapon 9 – Force Gun
Inside West Seedling Room A. Requires Security Clearance Level 2.
[MISSABLE] Log 92 – Use the Enzyme
When entering West Seeding Room B, before you inject Wheezer 01, shoot it. You will receive a call. This is missable – if you inject a Wheezer before trying to shoot, you won’t receive this call.
Log 93 – Jacob and Nicole
Story-related. Automatically after injecting Wheezer 01 and clearing out the Necromorphs.
Log 94 – Corruption
Take the lift to Floor 03 (on in-game map it’s Floor 04 but on lift it’s shown as Floor 03). On the desk inside Dr. E. Cross’s office with Wheezer 02.
Weapon Upgrade 10 – Subsonic Oscillator (Force Gun)
Purchase from Shop for 12,000 Credits. There is one on Floor 2 when going through the door.
Node 25
On the wall in front of you upon entering Refrigeration Tower. After the corridor with enemies that have explosive arms.
Log 95 – Help Me…
Story-related. Automatically upon entering Hydroponics Control, where Wheezer 04 is located.
Log 96 – Ghosts on the Monitor
Story-related. Automatically upon entering East Grow Chamber.
Holt’s Rig (Item for Side Mission 2 – You Are Not Authorized)
Upon entering East Grow Chamber, destroy the three corruption nodes on the left to reveal the rig on the ground behind the elevator.
Node 26
Dropped by the Brute in East Grow Chamber.
Log 97 – Cross’s Log 03
On the gantry at the top of East Grow Chamber, near Wheezer 06.
Log 98 – Corporate Assholes
Story-related. Automatically after leaving Air Filtration Hall, where you get grabbed by a tentacle.
Node 27
On the wall in front of you upon entering Air Filtration Tower.
Schematics 8 – Force Energy
Inside an alcove in Air Filtration Tower, in between the first and second electricity traps that you must slow with Stasis.
Log 99 – Technical Manual
Inside Annex Control Room, accessible after passing through the fire puzzle and using the lift.
Node 28
On the wall in the same room.
Log 100 – I Need You
Story-related. Automatically upon returning to East Seedling Room B for Wheezer 08.
Log 101 – Space the Leviathan
Story-related. Automatically upon injecting all Wheezers.
Log 102 – Bad Ideas
Story-related. Automatically upon entering Food Storage airlock.
Log 103 – Finish It Off!
Story-related. Automatically half way through Leviathan fight.
Log 104 – Head Back Inside
Story-related. Automatically after defeating Leviathan.
Log 105 – The SOS Beacon
Story-related. Automatically upon re-entering Food Storage airlock.
Log 106 – Go to the Mining Deck
Story-related. Automatically upon re-entering Food Storage airlock.
That’s 100% of the collectibles in Chapter 6: Environmental Hazard of Dead Space PS5 / PC Remake.
Next Up: Chapter 7: Into the Void Collectibles
For all other Chapters, refer to Dead Space Remake Collectibles Guide.
Missing Log is Inject the Weezers.
You must go to food storage before using the nitrogen, this triggers The Leviathan log.
Then after you collect the enzyme, the missing log will trigger.
From the looks of it, it replaces go to food storage log so will need to trigger this during another playthrough if following this guide.
Thank you very much! Tested and added to guide. Worked exactly as you said 🙂
Similar to Chapter 4, there are two logs that cancel out each other “Go to Food Storage” and “Inject the Wheezers”, depending on whether you go to Food Storage first or craft the Enzyme first.
Can get the unobtainable one in New Game Plus.
Log 85 – Cross’s Log 01 is not there for me.
I’m somehow missing Log 84 – Hydroponics Access after completing chapter 6?!
Same.. it’s supposed to be automatic from story. Perhaps it’ll pop on ng+ ?