What to know
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The puzzle is located in the East Wing of the area.
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Involves sequentially pressing atoms on the screen to activate all structures.
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Start from bottom left and follow a specific build-up and removal order.
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Success completes the full atom network for puzzle resolution.
In Resident Evil Requiem, the Blood Analyzer puzzle appears after interacting with the blood sample screen displaying atoms. You must activate every atom by selecting them in the correct sequence, building and adjusting the structure step by step. This unlocks key crafting capabilities tied to the game’s progression.
How to activate all atoms
Approach the Blood Analyzer in the East Wing and load the blood sample to bring up the atom screen.

Step 1
Press the atom in the bottom left corner first to begin the activation chain.

Step 2
Next, select the atom positioned up in the top area to connect the initial structure.

Step 3
Next, select the second atom from left.

Step 4
Now, select the atom on the right.

Step 5
Next, hit the atom in the bottom left.

Step 6
Now, select the square on the right again.

Step 7
Finally, press the atom at the very top to complete activation of the entire structure.

All atoms now light up, confirming success and granting the crafting unlock.

Rewards
Here’s what you get for completing this puzzle:
- Handgun Ammo
- Hemolytic Injector

Puzzle tips for success
Tailor selections to follow the atom structure precisely, as random presses disrupt the chain. Patience with the removal and re-addition step ensures smooth progression. This method works consistently for the Blood Analyzer.
Solving this puzzle advances your inventory options in Resident Evil Requiem, blending puzzle-solving with survival crafting needs.