Castle
Design a fortress gate
Balance strength, symmetry, and imagination while building an entrance that looks ready for a story.
Start the castle challenge →Choose a world
Three projects, endless answers
Space
Invent a moon base
Make connected spaces for living, research, storage, and protection—with a limited footprint.
Start the space challenge →City
Build a better block
Create one place that makes a neighborhood more useful, welcoming, or fun.
Start the city challenge →A repeatable design loop
Imagine, build, inspect, improve
- Name the problem your model should solve.
- Sketch the main shapes or describe them aloud.
- Build a quick first version with simple blocks.
- Rotate the model and inspect every side.
- Change one thing that makes the model clearer or stronger.
- Explain the final design to someone else.
Keep going
Turn any prompt into a maker activity
Change the setting, add a constraint, or design for a character. Limiting the number of blocks, colors, or footprint often creates better questions than asking for a perfect result.