About This Game

Fire, merge, grow

Fire bodies onto the rings that circle a sun. When two of the same size collide, they merge into something larger. Grow them big enough and they fall into the sun, and the sun grows with them.

Every supernova widens the universe

A fully grown sun goes supernova, leaving behind heavy elements. Spend them on upgrades and your next sun grows faster.

Each supernova gives birth to a new solar system. In time they become a galaxy, and at the heart of every completed galaxy, a black hole appears.

Zoom in, zoom out, just watch

Pull back seamlessly from a single solar system to a spiralling galaxy to a universe full of them. A viewing mode hides every line and label, so you can simply watch.

Aim it yourself, or let it run

Thread your shots onto the ring you want, or leave it to the launchers and watch. Even while the game is closed, your universe keeps growing, little by little.

Collect

• Five kinds of remnants left behind by supernovae

• Skins for galaxy colours, the sky and the shape of bodies (yes, a universe of hearts)

• 25 achievements, each unlocking a short note about the real universe

Streaming and Videos

Stream it, record it, monetize it — no permission needed, and no spoiler restrictions.

Show as much of the universe as you like.

The only thing we ask is that you don't extract and redistribute the in-game music as audio files.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

The title logo, app icon, and store page images were created with Claude and adjusted by the
developer. In-game text and its English translation were drafted with Claude and rewritten by the
developer. Everything you see in game is drawn by code; no AI-generated images, voice, or music.