In Resident Evil 9: Requiem, playing as Grace Ashcroft introduces a deep layer of biological research that is essential for your survival. Unlike Leon, who acquires gear through tactical finds, Grace must locate Blood Specimens and analyze them to unlock her unique Crafting Recipes.
Finding all Blood Specimen locations is the only way to produce high-tier munitions like 12.7x55mm (Requiem) rounds and life-saving Hemolytic Injectors.
Every specimen you find must be taken to a Laser Microscope—typically found in the Blood Lab (1F) or the ARK—to be decoded through a cellular alignment minigame.
There are a total of 6 core Blood Specimens found throughout the Care Center and the ARK on Standard difficulty. For players tackling Insanity Difficulty, the static locations of standard specimens remain the same, but a 7th item, the Primordial Specimen, is added to a secret area. Analyzing this unlocks the recipe for the R.I.P. Knife, the most powerful melee weapon in Grace's arsenal.
Finding the specimen is only the start. To verify the data and unlock the recipe, follow these steps:
Walking past a Blood Specimen in the dark corridors of the Care Center can leave you underpowered for the late-game gauntlets. To prevent this, we made sure to mark the exact coordinates of every Blood Specimen on our interactive Resident Evil 9: Requiem maps.
Our map markers include screenshots of the specific shelves or lockers where they are hidden. Use the links below to complete your research.
| Name | Details | Map Location |
|---|---|---|
| Blood Specimen (Converged) - Insanity Difficulty | Found on a cabinet in the Records Room. Use it on the Analyzer in the Blood Lab. This location is available only when you play the game on Insanity difficulty. On Casual and Standard difficulties, the specimen is found in the Waiting Room Closet. Unlocks Crafting:
| Care Center |
| Blood Specimen (Converged) | Found on a cabinet in the Waiting Room Closet. Use it on the Analyzer in the Blood Lab. This location is available only when you play the game on Casual and Standard difficulties. On Insanity difficulty, the specimen is found in the Records Room. Unlocks Crafting:
| Care Center |
| Blood Specimen (Polymerized) - Insanity Difficulty Only | Found on a table in the Waiting Room Closet. Use it on the Analyzer in the Blood Lab. The Blood Specimen is available only on Insanity difficulty. Unlocks Crafting:
| Care Center |
| Blood Specimen (Denatured) | Found next to the computer in the Blood Lab. Use it on the Analyzer on the same desk. Unlocks Crafting:
| Care Center |
| Blood Specimen (Reversible) | Found on the tray support in the room next to the Blood Lab. Use it on the Analyzer in the Blood Lab. Unlocks Crafting:
| Care Center |
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