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SandboxGames

© Copyright 2026 by Grasped

Canvas puzzles for people who learn by building

Learn graphics by making tiny games feel alive.

Grasped turns programming practice into a visual playground: write code, run it instantly, and understand motion, geometry, and interaction through small playable challenges.

5

Playable coding challenges

Canvas + JS

Visual feedback loop

Tips included

Learn while solving

Catch the circle

Catch the circle

Easy
Heart Beat

Heart Beat

Medium
3D Cube

3D Cube

Medium

Code against motion

Every task turns math, canvas, and logic into something visible on screen.

Instant feedback

Run, tweak, and inspect the result in the browser without leaving the flow.

Small games, real concepts

Start with a circle, end up understanding transforms, motion, and interaction.

Why this works

Practice programming on things you can actually see moving.

Static exercises are useful, but motion exposes mistakes faster. A wrong projection, a broken easing function, or a sloppy collision check becomes obvious the moment the screen reacts.


That makes Grasped a good fit for people who want to sharpen JavaScript, Canvas, math intuition, and problem solving in one place.

Catch the circle

1. Catch the circle

Easy

It's a starter game to make you familiar with grasped API. Click on the moving circle to destroy It!

Heart Beat

2. Heart Beat

Medium

Animate a beating heart by plotting a parametric curve and scaling it rhythmically over time.

3D Cube

Want to build something outside the game flow?

If you just want to use the Grasped API as a playground for your own ideas, open the sandbox and experiment freely. Sketch a prototype, test an interaction, build a weird little visual, or push the engine in a completely different direction.

Enjoying Grasped? Help keep new challenges coming.

If the platform helped you learn, prototype, or just have fun, you can support its development. Your support goes toward improving the experience, polishing existing mechanics, and adding more coding games to explore.

Support Development

3. 3D Cube

Medium

This game will help you to understand how the 3d visualization works. Let's draw a cube and transform it in 3d space.