Experiments

Steer with your mouse, WASD, or arrow keys. Hold click or Space to fire, Shift to boost, and Q to unleash a charged nova. On a touch screen, drag to fly and fire.

Chain rings for bonus points, earn close-call rewards, and collect blue energy for triple lasers, homing missiles, shields, and nova blasts. Three.js draws the 3D world; your personal best is saved in your browser.

The egg hatches in a minute. It is a baby for an hour, a child for a day and a teen until day three, then it grows into one of three adults depending on how well it was cared for. Hunger and happy hearts run down over time, droppings left too long make it sick, and a child or teen sometimes calls for attention it doesn’t need, which is when you scold it. Tap the icons or use the three buttons like the real toy. Your pet is saved in your own browser.

Three.js draws the particles and a drifting starfield on the graphics card, and MediaPipe reads your hands from the webcam, all in the browser, so the video never leaves your device. A glowing skeleton of your hand floats in the swarm and sheds sparkles as you move, two hands stretch the swarm between them like taffy, and typing a word makes the particles spell it. Shapes include a nebula, a heart, a ringed planet, a galaxy, a free-flowing drift and a pond you can ripple. A sound barrier effect squeezes the swarm flat and breaks it with a shockwave. Every sound is made in code: a soft chord that follows your hand, bell twinkles that sprinkle from your fingertips, and a whoosh with fairy dust on every explosion. Works with the mouse too, and leave it alone for a while and it starts cycling through shapes on its own.

Three levels: Easy, Medium and Hard. Easy has big marshmallows, two extra hops in the air, and the lava bounces you back if you fall in. Orange marshmallows are bouncy, some marshmallows move, and lava geysers launch you into the air. Collect the sugar stars and toast every marshmallow. Keyboard on a computer, joystick and jump button on a phone.

Made for an eight-year-old and built for a phone. Each spin lands on a chore or a special space: Spin Again, Double Duty, Your Choice, Double Reward, or a rare Free Day worth 100 bucks. The wheel favors chores that haven’t come up in a week. Finished quests pay into a bank with a reward shop, a savings goal and streak bonuses; skipping a quest costs 5 bucks. Parents set chores, prices and bonus goals behind a PIN, and approve every reward. Progress stays on your own device, with a backup to move it.

Choose what goes on the wheel from more than 30 kinds of things to make, then spin. Each prompt comes with random words for its blanks that you can keep, retype or roll again, and a note on where in Claude to try it. Save the ones you like to a basket and copy them all, or save them as a file to AirDrop or text. Built in Claude for the Claude Fluency Workshop.

Claude Code drew the dancer and every scene in code as a web page and turned it into video with ffmpeg. The dancer is a jointed figure, so the legs bend on their own as the feet move, and each animation is timed to the word that describes it. The narrator is a stock ElevenLabs voice, and the music is original, made in code. Captions are in the player.

Claude Code drew every frame in code on a 320×180 screen, the size of an old game console, and scaled it up so the pixels stay sharp. The hero, tiles, chiptune music and sound effects are all original and made in code. The narrator is an ElevenLabs voice pitched up into a cartoon character. A level select under the video jumps to each power-up, and captions are in the player.

Claude Code drew each scene as a web page and turned it into video with ffmpeg. Each animation is timed to the sentence that describes it. The narrator is a stock ElevenLabs voice, and the wind, rain and impact sounds are made in code. The facts come from the National Hurricane Center and a 2024 study in PNAS. Captions are in the player.

Claude Code wrote the script, with a source for every fact, drew each scene as a web page and turned it into video with ffmpeg. Each animation is timed to a word in the narration. The narrator, toot sounds and music were made with ElevenLabs. Captions are in the player.

Filter by town, distance, race type and date, then sort your results. Save favorites on your device, export a list or add a race to your calendar. Scheduled organizer checks refresh the listings, with a last updated date and source links so you can confirm details before registering.

Drag each glowing diamond to the triangle at the top of its ring. Every alignment brings back another musical layer. When all three lock, choose “Elsewhere Party,” “Silence into Home,” or “Little Green Pickers.” Switch while the aliens dance or replay a song after it ends. Each song's moves follow its beats and musical accents, measured ahead of time from the recording. You can also tune with the keyboard and mute the sound.