Protocol Documents Are Collectibles That Unlock Lore and Upgrades
Protocol Documents in Atomfall are scattered pages you find throughout the game world. They contain backstory about the research facility, the experiments that happened there, and the factions involved. Collecting them fills in the game's narrative and sometimes unlocks crafting recipes or stat bonuses for your character.
Unlike quest items that appear on your map, Protocol Documents don't have a marker pointing you toward them. You have to explore deliberately, check every room, and look for papers on desks, shelves, and the ground. Some are in obvious places; others are hidden in side rooms or behind locked doors you need a keycard to open.
The game doesn't tell you how many exist or track your progress toward collecting them all. You'll know you've found one when you pick it up and see a notification that you've obtained a Protocol Document. It goes into your inventory as a readable item.
Key Takeaways
- Protocol Documents are found by exploring every room in the facility, especially desks, filing cabinets, and shelves where papers would logically sit.
- Some documents are locked behind keycards or require you to solve puzzles or defeat enemies to reach the room they're in.
- Reading a document adds it to your codex, which you can review from the main menu to understand the game's story and world.
- Collecting all documents in a location sometimes triggers a small reward, though the main benefit is understanding the narrative.
- Documents respawn if you leave an area and return, so you won't lose progress if you miss one on your first visit.
Search Every Room Methodically, Starting With Administrative Areas
The facility in Atomfall is divided into zones, and each zone has multiple rooms. Protocol Documents cluster in certain areas—administrative offices, research labs, and break rooms are the most common places. Start by entering a zone and moving through every door, even ones that seem like dead ends.
Look specifically on desks, tables, and filing cabinets. Documents often sit on top of furniture or inside open drawers. Check the ground near bodies or in corners. Some rooms have multiple documents, so don't assume you've found everything just because you picked up one page.
Administrative areas—the offices where scientists and facility managers worked—tend to have the most documents. These rooms often contain personal notes, memos, and official reports. Research labs have documents too, but they're sometimes mixed in with hazardous materials or guarded by enemies, so you may need to clear the room first.
Use Keycards and Puzzle Solutions to Access Locked Rooms
Some documents sit in rooms you can't enter without a keycard. Keycards are color-coded—red, blue, and yellow—and each one opens doors marked with that color. You find keycards by exploring other areas or defeating certain enemies. If you see a locked door, note its color and keep exploring until you find the matching card.
Other locked areas require you to solve environmental puzzles. These might involve moving objects, activating switches, or finding a code written on a nearby wall or document. Read everything you pick up—some documents contain clues to other locked areas.
If a room is blocked by enemies, you can either fight through them or come back later when you're stronger. Atomfall doesn't force you to clear every room on your first visit, so it's fine to mark a location mentally and return after you've leveled up or found better weapons.
Check Your Codex to Confirm You've Read Each Document
When you pick up a Protocol Document, it goes into your inventory. You can read it when ready or later. Once you've read it, it appears in your Codex, which you access from the main menu. The Codex organizes documents by location and shows you which ones you've found.
Use the Codex as a checklist. If you're trying to collect all documents in a specific zone, open the Codex, navigate to that zone, and see which entries are blank. That tells you which documents you still need to find. The Codex also shows you the document's title and a preview of its content, so you can decide whether to read it fully.
Some players use the Codex to track which zones they've fully explored. If a zone shows all documents collected, you know you've been thorough. If it shows gaps, you know there are still rooms to revisit or areas you haven't unlocked yet.
Return to Areas After Unlocking New Keycards or Gaining Abilities
Atomfall is designed so you'll revisit zones multiple times. Early in the game, you might pass a locked door you can't open. Later, after finding the right keycard or learning a new skill, you can go back and access it. This is when you'll find documents you couldn't reach before.
Pay attention to which doors you couldn't open on your first visit. Make a mental note of their color or the puzzle blocking them. When you find a new keycard or unlock a new ability, think back to those blocked areas and return to them. You'll often find a cluster of documents waiting.
The game rewards thorough exploration this way. You're not penalized for missing documents early; you're expected to come back. This also means documents don't disappear if you leave an area—they'll still be there when you return, so there's no pressure to find everything in one pass.
Documents in Hidden Rooms Often Contain Rare Lore or Crafting Recipes
Some of the most valuable documents are in rooms that are straightforward to miss. These might be side passages off main corridors, rooms with no obvious entrance, or areas hidden behind destructible walls. Explore thoroughly and try opening every door you see, even if it seems like it leads nowhere.
Documents in these hidden rooms often contain rare lore—backstory about specific characters, details about experiments, or information about the factions at war over the facility. Some also unlock crafting recipes or provide hints about where to find rare items or weapons.
If you're stuck on a puzzle or can't find a particular item, check the documents you've already collected. They sometimes contain clues written in the form of notes or logs. The game doesn't spell this out, but reading everything you find is part of solving Atomfall's mysteries.
Organize Your Search by Zone to Avoid Backtracking Unnecessarily
The facility has distinct zones—the entrance, the labs, the residential area, and others. Rather than jumping between zones randomly, pick one and explore it completely before moving on. This saves time and makes it easier to remember which areas you've checked.
When you enter a new zone, take a moment to map it mentally. Note which doors are locked, which rooms you've cleared, and which areas you haven't reached yet. Then systematically work through the zone, checking every room and every surface. Once you've done that, you can move to the next zone knowing you haven't missed anything.
If you find a locked door, mark it on your mental map and come back to it later. Don't let locked doors frustrate you—they're part of the game's design. You're meant to find keycards elsewhere and return. This approach keeps you moving forward instead of getting stuck.
Frequently Asked Questions
Do I need to collect all Protocol Documents to finish the game?
No. The main story doesn't require you to find every document. However, collecting them fills in the game's lore and sometimes unlocks small rewards like crafting recipes or stat bonuses. If you're interested in the story, collecting them is worth the effort. If you just want to finish the game, you can skip them.
What happens if I miss a document on my first visit to an area?
Documents don't disappear. You can return to any area at any time and pick up documents you missed. The game is designed so you'll revisit zones multiple times, especially after unlocking new keycards or abilities. There's no penalty for finding documents out of order.
Are there documents in every room?
No. Some rooms have multiple documents, and some have none. Administrative areas and research labs tend to have more documents than storage rooms or hallways. Don't assume every room has something—just check thoroughly and move on if there's nothing there.
Can I read documents without picking them up?
You have to pick up a document to read it. Once it's in your inventory, you can read it when ready or later from your Codex. There's no downside to picking up documents—they don't take up much inventory space and you can always delete them after reading if you want.
What should I do if a room is blocked by enemies I can't defeat?
Come back later. Atomfall lets you return to any area at any time. If enemies are too strong, leave the room, explore other zones, level up your character, and find better weapons. Then return and clear the room. The documents will still be there waiting.