PHONE DISPLAY

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These games work best in landscape mode.
Tall Towers

READY TO BUILD
Templates

Start with a shape.

Load a design in Free Build, then make it yours. Undo brings back your previous free build.

Playful shapes inspired by real buildings.

中文
Tap two joints to add a brace. Drag from a joint to build higher.
Height4.8 m
THE SHAKE LAB

Build. Shake. Try again.

  1. 01

    Build your way up

    Drag from any joint to add a new one. Nearby joints connect automatically. You can also tap empty space near your tower.

  2. 02

    Give it a brace

    Tap a joint, then tap another joint to connect them. Diagonal beams turn wobbly squares into triangles.

  3. 03

    Put it to the test

    Reach the flag and press Shake it! Keep your tower above the flag when the shaking stops.

  4. 04

    Make one change

    Keep building restores your design. Try a wider base, another brace, or a different shape. The earthquake stays the same.

Keyboard: focus the building area. Arrow keys move the cursor; Enter selects a joint or places one. In Move, select a joint, then use arrows to move it. Escape clears selection. Delete removes a selected joint. Ctrl/⌘ Z undoes.

A playful model of structures and shaking.