Everdust is an app of space science games, narrated science stories and a particle universe simulator. Its store name is Everdust: Space Science Games. I'm Seth Pratt, and I make it.

The one idea behind all of it: every world is a live simulation, not a video. Stars, galaxies, black holes and fluids are made of particles that follow their own physics. They move with your music and answer your touch, so no two moments are the same.

The worlds

The Everdust engine has 121 live scenes. A few of them:

Galaxy Collision: two galaxies merge, with up to about a million stars, each pulled by gravity. Drag to orbit, pinch to zoom.
Black holes that bend the light around them, including a spinning (Kerr) black hole.
Nebulae, strange attractors, ferrofluid, slime-mold networks and the cosmic web.
Paintings you can walk into: public-domain paintings by Van Gogh, Monet and Hokusai, rebuilt as 3D brush strokes.

Each world maps music to its own physics, so ferrofluid spikes with the bass. Nothing is laid over the top. The sound is analyzed on your device and never recorded or sent.

Stories

Stories are science explained in chapters, and each chapter is a live simulation you can play with while the narrator talks. There are 14 Stories with 110 chapters in all, all of them narrated by River. Voice only turns the music off and keeps the narration.

The Stories: The Story of Everything, The Future of Everything, The Life of a Star, The Life of a Black Hole, Anatomy of a Thought, Anatomy of a Thought II, Hidden Patterns, How the Hourglass Nebula Formed, How the Butterfly Nebula Formed, Chaos: The Attractor We Found, Death of a Giant Star, Evolution in a Box, Clockwork to Chaos and The Power Plant: how your cells make energy.

Games and toys

On iPhone and iPad there are 11 space science games built on real physics, with levels, stars to earn and a free daily level: Feed the Black Hole, Lightfold, Comet Rider, Black Hole Golf, Orb Popper, Orbit Architect, Supernova Chain, Topple, Air Hockey, Jet Versus and Murmuration Duet. Fireworks on the Beat is there too.

In the headsets, Apple Vision Pro and Meta Quest, games are played with your hands (and with controllers on Quest). On Vision Pro you can light fireworks, bend a ball round black holes in Black Hole Golf, collide galaxies in Galaxy Billiards, or split white light into color in Lightfold.

There are smaller toys too, for when you just want to touch something: Black Hole in Your Palm, Stir the Stars, Lightning in a Jar, Smoke Rings and Ink Marbling.

Create

Describe a world in words, or start from your photos, and Create turns it into a live simulation. Create uses AI to design the scene; what plays is still a live simulation. Photos are processed on the device and never leave it. Designing with Create needs a sign-in; nothing else in Everdust does. For a free taste in any browser, turn a photo into particles: it runs on your device too.

Where it runs

Apple Vision Pro: on the App Store since October 22, 2026. Full immersion, or In your room, where worlds rest on your real table.
Apple TV: on the App Store since October 30, 2026, free.
iPhone and iPad: on the App Store since November 2, 2026, free. Night Sky and its deep-sky wonders since version 1.1 (November 7, 2026): hold your phone up to the real sky and tap a wonder to fly into it.
Mac: a free download from everdust.ai (version 1.0.1; macOS 14 Sonoma or later, Apple silicon (M1 or later)); the Mac App Store version is in review.
Android phones and tablets: on Google Play since October 22, 2026, free. Night Sky and its deep-sky wonders since version 1.0.8 (November 7, 2026).
Meta Quest 3 and 3S: on the Meta Horizon Store since November 2, 2026, free. Hands or controllers, seated, standing or roomscale. Night Sky and its deep-sky wonders aren't in the Quest version yet; they come in a later update.
Google TV and Android TV: coming soon.

You can also try some of the worlds in a web browser at everdust.ai/play: a galaxy collision simulator, a black hole simulator game, a gravity simulator and more. For how the app simulates the universe as a whole, see Universe simulator: how Everdust builds the cosmos from particles.

What's free

Everdust is free to download, with no ads. Every world and every music source is free, and so is The Story of Everything, every chapter of it. Every other Story starts with free chapters, and every game with free levels and a free daily level. Everdust Plus is optional: it unlocks the rest of every Story and every game level. Plus is on sale in the app on the App Store (iPhone, iPad, Apple Vision Pro and Apple TV) and on Google Play.

For artists

The same engine runs three tools for musicians and VJs, sold on this site for Mac: Everdust Live, a VJ app for shows; Everdust Plugin, which plays the simulations in time with your DAW and renders your song as a 4K music video; and Everdust Loops, packs of seamless 4K video loops.

Short answers

Is Everdust a video app? No. Every world is simulated live on your device's graphics chip.
Is it free? Yes, including The Story of Everything in full. Everdust Plus is optional.
Does it need an account? No, except to design worlds with Create.
Who makes it? Seth Pratt, who founded Everdust.