Interactive 3D world for level 2.2. Hold Control or Command and drag to orbit or scroll to zoom. Touch users can drag or pinch.

Ctrl / ⌘ + drag to orbit · Ctrl / ⌘ + scroll to zoomDrag to orbit · Pinch to zoom

LESSON 2.2

What Never Changes

inmut creates a box that cannot be reassigned; the compiler enforces it.

Goal Spend 30 energy without changing the limit, then show both values.

Write a Zirk program, then run it to see the world react.
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