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 Artifact – Surgeon’s Recorder – On your way to get Ellie, this will be on the desk in front of you as soon as you enter the 6th floor.

 Shiv #13 – This door is just around the corner from the recorder you just picked up.

 Firefly Pendant – Bryony Stewart-Seume– This is in the room in which you just opened with the Shiv.

 Artifact – Marlene’s Recorder 1 – As you enter the 6th floor, turn right and take the first door on your right.

 Artifact – Marlene’s Journal – Once you enter the 6th floor, there’s two doors that lead to another area. In the center of this, there will be a makeshift room made out of Firefly banners. There is an artifact in this area.

 Artifact – Marlene’s Recorder 2 – After your first encounter on the 6th floor, you will go through another door. From here, take the very first door on your right and the recorder will be on the table.

 Comic Book – Singularity – This is chapter 12. When you’re back in a forest, look for a pickup truck. It’ll be about at the 2 o’clock position from start after climbing through a fence.

Watch full Grounded mode difficulty walkthrough with collectibles

Select a Chapter/Guide

Chapter  2 – Quarantine Zone (note, there are none in Chapter 1)
Chapter 3 – The Outskirts
Chapter 4 – Bill’s Town
Chapter 5 – Pittsburgh
Chapter 6 – The Suburbs
Chapter 7 – Tommy’s Dam
Chapter 8 – The University
Chapter 9 – Lakeside Resort
Chapter 10 – Bus Depot
Chapter 11 & 12 – Firefly Lab and Jackson

All 37 Optional Conversations
All 5 Ellie Joke Conversations
Toolbox Locations
Shiv Doors