Explore it.
Get close to a 3D model. Find out what every part does.

Commander Academy
Engineering missions · Ages 10–14Explore in 3D. Test your ideas. Build a shelter you understand, from the ground up.
First 5 lessons free. No sign-up needed.
Teaching what lasts.
Illustrated shelter concept30connected missions
5campaigns to explore
Interactive 3D learning
Your pace. Your discoveries.
The training grounds · Frame Corps
A rectangle can lean. A triangle holds its shape. Sometimes one small change makes all the difference.
Give this frame a push. Then add a diagonal and see what changes.
Explore the full 3D lessonThe frame changes shape.
An ideal pin-jointed model. Movement is exaggerated to show the idea.
Get close to a 3D model. Find out what every part does.
Change a load or a dimension. See the numbers respond.
Solve the challenge, explain your thinking, and build on it.
The campaign trail · 01–30
From your first timber frame to a shelter that keeps its people safe. Every mission builds on the last.

Missions 01–06
Raise a wall. Make it square. Give your shelter its shape.
Explore campaign
Missions 07–12
Read the land and build a foundation you can count on.
Explore campaign
Missions 13–18
Find the strength in a triangle. Stand up to the weather.
Explore campaign
Missions 19–24
Keep the rain out, the warmth in, and the details right.
Explore campaign
Missions 25–30
Bring water, light, air and safety into the picture.
Explore campaignThe first five missions are yours to explore, free.
See all 30 missionsIllustrated campaign covers · Explore each campaign for the interactive 3D lessons.
For curious kids. And their grown-ups.
Make room for the questions, experiments, and small discoveries that turn into real understanding.
No child account. Learning progress stays on this device.
Pause, revisit an idea, and try again. There’s no race to finish.
You guide the learning and supervise activities away from the screen.
5 free missions.
A wall. A doorway. A corner.
The beginning of something bigger.
No sign-up. No card. Just curiosity.
$79 onceor$29 / year
One household · All 30 missionsPaid checkout coming soon · View plansGood questions
A few things you might be wondering.
A modern browser with WebGL. Nothing to install. If 3D acceleration is missing, the lesson, numbers lab, assessments, diagrams, and Field Card stay available as text.
Once the Academy file has loaded, fonts and the engine are embedded in that file, so the lesson keeps running with the network off. Progress is stored only in that browser.
Every lesson is marked Ages 10–14. The learner is the child. The account, if you create one, belongs to the adult.
Own the account and any purchase, open the Adult Guide from the lesson menu, supervise Serve missions (they begin “With a qualified adult”), and print Field Cards if you want a paper record. See the mission brief for the full list.
No. Lessons 01–05 need no sign-in. Children never sign in. Progress and Honor stay in the browser on the device where the lesson is played.
If you create an adult account: your email and password with Supabase, your entitlement, and a Stripe customer id if you pay. Nothing about the child. Academy progress is not uploaded.
Yes. One household plan. Progress is per browser, so two children on two devices each keep their own Honor.
Support and refund handling is being set up before checkout opens.