In Resident Evil Requiem, puzzles play a central role in the story and exploration, from unlocking critical doors to obtaining rare crafting materials and collectible charms.
There are different types of puzzles, including Quartz puzzles, Blood Analyzer logic challenges, safe codes, inventory and item puzzles, and optional Easter-egg challenges that give you different rewards and achievements.
1. Main Story & Progression Puzzles
Quartz puzzle
In Resident Evil Requiem, the main story progression puzzles are key obstacles that must be solved to advance the plot and escape early nightmare scenarios.
| Puzzle Name | Location | How to Solve | Reward/Purpose |
|---|---|---|---|
| Moon Quartz Puzzle Box | Chairman’s Office, West Wing (2F) | 1) Grab Pencil from desk. 2) Use Pencil on Notebook to reveal symbol order. 3) Enter: Moon → Sun → Star → Moon. |
Moon Quartz – needed to open Central Hall door |
| Sun Quartz Puzzle Box | Lead Researcher’s Office, East Wing (2F) | 1) Get corrosive from Conference Room. 2) Melt padlock on puzzle box. 3) Observe photos/documents for symbol clues. 4) Enter: Star → Sun → Moon → Sun. |
Sun Quartz + Leatherbound Notebook |
| Star Quartz Puzzle Box | Security Manager’s Office, East Wing (1F) | 1) Gain Level 2 Wristband, bring Emily. 2) Emily reads Braille symbols. 3) Enter: Star → Star → Moon → Sun. |
Star Quartz – final piece for Central Hall door |
| Central Hall Quartz Mechanism | Central Hall, Care Center | Insert Moon, Sun, Star Quartz in matching slots to open courtyard door. | Unlocks Courtyard |
2. Blood Analyzer Logic Puzzles
Analyzer Blood Specimen Puzzle
These are logic grid puzzles that reward crafting recipes and ammo once solved.
| Specimen Name | Location | Solution (Click Order) | Unlock / Reward |
|---|---|---|---|
| Denatured Blood | Blood Lab (next to analyzer) | Click the central node | Handgun Ammo + Hemolytic Injector crafting |
| Reversible Blood | Blood Lab side room (Level 1 Wristband) | · Bottom‑left → Middle → Top‑right → 2nd from top | Steroids & Stabilizer crafting |
| Converged Blood | Ward Office (Level 1 Wristband) | · Middle connected node → Middle node | Med Injector + 12.7×55mm ammo crafting |
| Polymerized Blood (Insanity) | Ward Office (Insanity only) | Middle Left → Middle Right → Middle Bottom | RIP Knife + crafting items |
3. Inventory & Item Puzzles
In Resident Evil Requiem, not all challenges are symbol combinations or logic grids — several require you to interact with inventory items and environmental objects in specific ways to unlock new areas or obtain key progression items.
| Puzzle Name | Location | Solution | Reward |
|---|---|---|---|
| Organ Transport Box | Garage (West Wing) | 1) In inventory, open Organ Transport Box. 2) Switch bottom‑right to HAND; right switch to middle; press button 5; press button 2; set bottom‑right back to AUTO. |
Artificial Lungs (key progression item) |
| Cold Storage Door | Cold Storage (West Wing) | 1) Obtain Wrench from Custodian’s Office (requires Level 1 Wristband). 2) Use Wrench on hex door to open. |
Artificial Heart (used in puzzle progression) |
4. Safe Combination Puzzles
Safe Box
There are multiple safe lock challenges scattered throughout the game that unlock supplies, ammo, and gear. Safe codes may change on Insanity mode.
| Safe Location | Default Solution (Normal Mode) | Contents/Reward |
|---|---|---|
| Bar & Lounge Safe | Left 10 → Right 80 → Left 30 | Ammo & supplies |
| Exam Room Safe | Right 30 → Left 10 → Right 50 | Supplies |
| Basement Safe | Right 60 → Left 40 → Right 80 | Supplies |
| Sterilization Safe | Right 10 → Left 90 → Right 20 | Gear |
| Monitor Control Safe | Left 50 → Right 60 → Left 80 | Supplies |
5. Easter Egg & Side Puzzles
Leon Barry’s Scavenger Hunt
These are optional Easter Eggs in Resident Evil Requiem that require you do a certain task to unlock Charms.
| Puzzle | Location | How to Solve | Reward |
|---|---|---|---|
| RPD Briefcase Code | S.T.A.R.S. Office, RPD (RE9) | 1) Find note in Wesker’s drawer pointing to library book. 2) In RPD Library (west upper level), inspect the book to view photo back: “Rising Rookie Rebecca”. 3) Input code RRR on briefcase. |
Power Shades Charm |
| Barry’s Scavenger Hunt | RPD (Operations Room) | 1) In Operations Room, climb pallet to reach hanging TV. 2) Pick up Jojo’s Locker Key. 3) Open Jojo’s Locker in West Office. |
S.T.A.R.S. Emblem Charm & zoo tickets |
6. Roulette Mini‑Puzzle
This is a unique puzzle where the roulette always cycles through 7, 15, 29 — so you only need to match your shot to the spin result.
| Location | How to Solve | Reward |
|---|---|---|
| Parlor Room, Care Center | 1) Approach roulette table & wheel. 2) Shoot one of the recurring numbers 7, 15, or 29. 3) Spin the wheel repeatedly until it lands on the number you shot (reload if needed). | Antique Coin (unlock upgrades) |
7. The Final Puzzle
Final Puzzle
One of the most mysterious and ambitious challenges in Resident Evil Requiem isn’t part of the main story progression but appears under the game’s Challenges → Final Puzzle menu after you’ve completed large portions of the campaign.
| Step / Component | What You Do/Where | Current Result / Status |
|---|---|---|
| Find Severed Hand | After escaping the Care Center basement near the elevator | You pick up the hand — it becomes a key item in the Final Puzzle. |
| Analyze Severed Hand | Use a Laser Microscope at the Blood Lab or certain office areas | Instead of a crafting recipe, the analyzer displays a cryptic message “Let’s play” with an RNA‑like code (e.g., GGC AAG AUA ACG UGU CAU). |
| Interpret RNA Sequence | Decoding effort using environmental clues (hourglass, blood report, other notes) | Partial mapping to symbols has been proposed (e.g., Sun/Moon/Star mapping from G, U, C), but there’s no official solution yet. |
| Adjusted Puzzle Interaction | After analyzing the hand, some previously solved Sun/Moon/Star puzzles become active again | Community reports entering sequences like: – Sun, Sun, Star – Sun, Moon, Star – Sun, Moon, Sun – Moon, Star, Moon may produce a childlike laugh, but full completion remains unverified. |
| Hourglass Clue | Interact with hourglass hidden item and flip it, revealing “U = 380,000” | Interpreted as a clue linking RNA letters to the Moon (distance from Earth). |
| Other Environmental Clues | Various game locations may contain related hints (e.g., orphanage carpet symbols, doll interactions) | These items can be linked to the overall final puzzle sequence/code. |
| Challenge Completion | Listed in Challenges menu but not fully solved in a reproducible way | No confirmed final reward or complete solution has been verified besides the laugh. |
