Ages 8–12 · Grades 3–7 · 18 levels
Windspine Citadel
Bring a giant citadel back to life by learning how your own body moves and breathes. Find the bones of the skeleton on a real scientific illustration, match each bone to the organ it protects, discover the joints, tendons and muscle pairs that move you, then follow the air through your nose, windpipe and lungs to the tiny air sacs where oxygen enters your blood. 18 levels for ages 8–12.
- The skeleton
- Lungs & breathing
- Joints & muscles
Levels
A free account unlocks levels 3–4
Create a free account
A subscription unlocks levels 5–18
Try every level free for 30 days
How to play
- Each level starts with a short lesson. Read it, then beat the level's guardian.
- Tap the picture to find body parts, sort cards into groups, link pairs, put steps in order, fill gaps and pop the right balloons.
- Every answer comes with a short explanation, so a wrong answer still teaches you something.
- Score 60% or higher to unlock the next level.
- Levels 1–2 are free with no account. A free account also unlocks levels 3–4.
- A small monthly subscription unlocks every remaining level.
Questions and answers
What age is Windspine Citadel for?
Ages 8–12. It starts with the bones of the skeleton (taught in Year 3 in England, around age 7–8) and ends with how breathing works and how exercise, asthma and smoking affect the lungs (secondary school science).
Are the body diagrams real?
Yes. The skeleton and lung pictures are professional scientific illustrations from Servier Medical Art and Wikimedia Commons, with their labels removed so you can find each part yourself.
Does it cover the heart and digestion?
No. The heart is in Verdant Trail and digestion is in Sunthread Run. This game is about bones, joints, muscles and breathing.
Image credits: Servier Medical Art (smart.servier.com), CC BY 4.0: skeleton, knee, joint, airways, air sacs · Mariana Ruiz (LadyofHats), Wikimedia Commons, public domain: respiratory system · CC BY 4.0