SPACE ACADEMY · TRY, THINK, PLAY

Seven grades. Seven space adventures.

Solve a puzzle. Build your craft. Choose a grade to start exploring.

Play Space AcademyChoose a grade

Pick your adventure

Start where you feel comfortable. You can change grades at any time.

Moon Camp Capsule. Workshop. 6 of 6 modules fitted.Workshop configuration. Dashed outlines show modules not yet fitted. Fitted modules: Moon thruster, Capsule body, Explorer window, Moon cap, Left landing fin, Right landing fin.

6 CHAPTERS · NO TIMER

PP1: Moon Camp

Count and collect the right picture parts.

Try PP1
Planet Hopper Lander. Workshop. 6 of 6 modules fitted.Workshop configuration. Dashed outlines show modules not yet fitted. Fitted modules: Landing thruster, Supply deck, Pilot cabin, Ground sensor, Left landing leg, Right landing leg.

6 CHAPTERS · NO TIMER

PP2: Planet Hopper

Choose and place components to complete a pattern blueprint.

Try PP2
Mars Rescue Rover. Workshop. 6 of 6 modules fitted.Workshop configuration. Dashed outlines show modules not yet fitted. Fitted modules: Drive unit, Cargo chassis, Control core, Camera mast, Left wheels, Right wheels.

8 CHAPTERS · NO TIMER

Class 1: Mars Rover Rescue

Drive around obstacles, collect repair crates and reach the exit.

Try Class 1
Outer Planet Voyager. Workshop. 6 of 6 modules fitted.Workshop configuration. Dashed outlines show modules not yet fitted. Fitted modules: Ion drive, Probe bus, Instrument bay, Radio dish, Left solar panel, Right solar panel.

8 CHAPTERS · NO TIMER

Class 2: Outer Planet Voyager

Load a probe while meeting supply, fuel and capacity conditions.

Try Class 2
Star Navigator. Workshop. 6 of 6 modules fitted.Workshop configuration. Dashed outlines show modules not yet fitted. Fitted modules: Cruise engine, Explorer hull, Flight cabin, Star compass, Left scanner wing, Right scanner wing.

9 CHAPTERS · NO TIMER

Class 3: Star Navigator

Plot a connected route through the checkpoint within the fuel allowance.

Try Class 3
Nebula Research Station. Workshop. 6 of 6 modules fitted.Workshop configuration. Dashed outlines show modules not yet fitted. Fitted modules: Transfer tug, Habitat ring, Lab & control hub, Survey telescope, Left power wing, Right power wing.

9 CHAPTERS · NO TIMER

Class 4: Nebula Research Station

Place and rotate station modules without overlap, connected to the core.

Try Class 4
Galaxy Command Flagship. Workshop. 6 of 6 modules fitted.Workshop configuration. Dashed outlines show modules not yet fitted. Fitted modules: Propulsion cluster, Command spine, Command bridge, Deep-space array, Science pod, Habitat pod.

10 CHAPTERS · NO TIMER

Class 5: Galaxy Command

Assign probes to sectors while meeting budget, energy and science requirements.

Try Class 5

Try, then play

Every chapter has quick questions, picture choices, hints and worked answers. Pick Explore, Reason or Stretch.

Build and discover

In the game, different chapters unlock different craft systems. Play your grade’s space activity and fill a shared Universe Passport.

Olympiad guides for parents

For grown-ups

Original practice, not an official paper

All questions, diagrams, picture choices, hints and explanations are original Otterly work. There are no copied provider questions, paper screenshots or live AI-generated questions. No Olympiad provider is affiliated with or endorses Space Academy.

SOF’s topic syllabi are the primary Class 1–5 grade reference. Other providers differ in scope. PP1 and PP2 are Otterly readiness activities, not official SOF IMO levels.

Reference papers by grade

Additional Class 5 reference: Unified Council UIMO official sample index (sample, not a past paper).

How content is checked

The October 2026 rebuild compared five official SOF IMO Class 1–5 samples for 2026–27, five CREST CMO Class 1–5 previous-year papers from 2023–24 Set A, the CREST Junior and Senior KG samples, and a Unified Council UIMO Class 5 sample. These 13 documents total 63 pages; 18 representative rendered pages were visually inspected. SOF, KG and UIMO samples are not administered past examinations; the CREST previous-year papers supplied that comparison.

Answer checks and paper comparison are not independent pedagogical review. Independent educator calibration is still needed for difficulty and breadth. Explore, Reason and Stretch describe foundations, connected reasoning and linked conditions, not validated equivalence to an exam.

Not complete exam preparation. Each chapter lists its actual formats by level. Not every published topic or reasoning format is covered. Follow classroom teaching and check the current official syllabus too.

Understanding reports

Learning reports distinguish hinted answers from independent first choices. They consider up to 20 recent different, unhinted questions per skill and level, and wait for at least five before suggesting extra practice. Repeating the same question does not add evidence. Reports are practice evidence, not IQ scores, diagnoses, ranks or predictions of competition results.

Ask the learner to explain a drawing or check with objects too. Choose Explore or an earlier chapter when a step feels too large.

Private, local saves

Game progress stays only in this browser, in three anonymous explorer slots. Clearing site data or closing a private session may remove it. Download a private backup from Help & saves; there is no cloud sync. The game checks saves before play and stops on save failures rather than pretending progress was saved.

These page examples never change a saved game. Game links carry question settings, not a learner’s answers. There are no names, school details, public profiles, chat, analytics or advertising SDKs in the game. Grown-up guidance · Privacy

Report a confusing question using its grade, chapter, level and wording. Do not send children’s personal information.

Original Otterly practice, not an official exam. Game progress stays on this browser.