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Foster Labs · Code Lab

Snap blocks.
Write code.

Seven games that start with drag-and-drop puzzles and end with real JavaScript. Pick a color, clear a level, light up the bar.

1 Pick a game
2 Drag blocks to solve it
3 Level up to real code
0 of 6 levels cleared
Cleared a game? Tap "I beat it" and watch the rainbow fill.
📱
Best on a phone? Start here

Code Quest

Tap-to-code maze puzzles built for touch — no dragging, works in your hand. Sequences, then loops, same ideas as the games below.

Play now →

Six worlds, six games

The classic Blockly suite — these shine on a computer or tablet. 💻 best on a bigger screen

Capstone · real JavaScript

Pond

Program a duck to battle others by writing actual JavaScript — the big-kid finale once the blocks click.

Enter the Pond →
Note for grown-ups

These are Blockly Games, the open-source coding suite from Google, now maintained by the Raspberry Pi Foundation (Apache 2.0). The whole suite is built and hosted right here on games.fosterlabs.org — every game runs on our own site, nothing loads from anywhere else, and it works offline. Progress is saved on this device only.