Collect all five bags in route order
This is the altered Medical Centre in Part 3, “Many Into One.” Two bags open the route and are consumed; they are not missing final ingredients.
| Bag | Use | Continue by |
|---|---|---|
| Alan Duncan | Insert into the SW door mechanism | Collect Sarah Watson. |
| Sarah Watson | Keep for the final machine | Collect Ward W Master Key. |
| Lesley Greer | Insert into the DP door mechanism | Use Ward W access and the ladder to reach this section. |
| George McEwan | Keep for the final machine | Collect Ward P Master Key. |
| Matthew Clark | Keep for the final machine | Collect after the elevator drops to the lower area. |
After taking Matthew’s bag, operate both manual-release wheels to open the exit gates. One wheel alone does not complete the escape.
First access bag · 0:56 ▶ · Matthew and the exit · 2:43 ▶
Reference: GamesRadar+ — blood transfusion, AllThings.How — blood puzzle, PowerPyx — full story & puzzle solutions.
Set the three final slots
| Slot | Bag | Clue |
|---|---|---|
| Left | Sarah Watson | Regular pulse; head wound |
| Middle | Matthew Clark | Confused speech; obeys commands |
| Right | George McEwan | Second- and third-degree burns |
Use the switch near the room door after installing all three. The next stage is blood-type routing, not another bag-order puzzle.
Connect the compatible donors to Ordell
Read Simon’s bracelet: the patient is Ordell A+. This puzzle accepts O−, O+, A− and A+ donor groups. Match the chart beside the machine to its initials.
- Rotate the rings until TF, HM and SW each have an uninterrupted connection to the centre.
- Check that every other donor path is blocked. A correct elbow can still connect an unwanted branch elsewhere.
- Select the central Ordell control to start the transfusion.
Chart and wheel · 3:31 ▶ · Final alignment and activation · 4:25 ▶
Reference: GamesRadar+ — blood transfusion, AllThings.How — blood puzzle.
If the machine will not start
- Check the three named bags and use the door-side switch for stage one.
- Re-read Ordell’s bracelet and the donor chart for stage two.
- Use only TF, HM and SW, then inspect every full path to the centre.
- Activate Ordell after aligning the wheel. A solved-looking display without that interaction does not finish the task.
Video walkthrough
Every ▶ time link plays in the player below. Choose another time to continue in the same player.
Sources & image credits
View sources and credits
Reviewed October 9, 2026. Written instructions were compared with the cited gameplay and current official information.
- GamesRadar+ — blood transfusion ↗
- AllThings.How — blood puzzle ↗
- PowerPyx — full story & puzzle solutions ↗
- TownfallWalkthrough.com — Part 3 ↗
- IGN — Blood Transfusion Puzzle Solution ↗
Gameplay frames: IGN, at the captioned times. Diagrams: GameHelpBase. They explain the task and are not game screenshots or exact maps.