Space Physics · iPhone & iPad · Free

Intergalactic

Space Physics

4 Games. Real Physics. A Galaxy to Light Up.

iPhone & iPad Gravity Orbits Time Dilation Leaderboards

slingshot round Jupiter lock a perfect orbit skim a black hole steer a comet

Coming soon to the App Store

4 Games 3 Galaxies Daily Mission

Slingshot: a probe curves past Jupiter towards the target

The Milky Way map with lit worlds, the next goal and the daily mission

Event Horizon: a ship skims a black hole while its clock falls behind Earth's

Quick Games, Real Physics

Every game is built on how gravity really works, so you learn it by feel

A Galaxy to Light Up

The Milky Way has eight worlds, from Venus and Jupiter to Sagittarius A*. Each one has three goals in one of the games: light it, then earn silver and gold.

New Galaxies

Light all eight worlds to unlock Andromeda, then Triangulum. Each galaxy has new worlds, stronger gravity and harder goals. Swipe the map to see what's next.

Space Never Sits Still

Rogue planets and giant comets sometimes drift through mid-round, and their gravity tugs on everything nearby. Use them for a bonus, or get out of the way.

Cosmic Facts

Every world you light comes with a true fact about it, like how Jupiter flung the Voyager probes towards the edge of the Solar System, or how fast the ISS circles Earth.

Daily Mission & Leaderboards

A new mission every day, the same for every player, with its own leaderboard. All-time boards for each game, and a daily streak to keep going.

Play Anywhere

Play straight away as a guest. Sign in with Apple or Google to sync your galaxies between iPhone and iPad.

4 Games, 4 Laws of Space

Each one is built around a real idea from physics

Gravity assists

Slingshot

steal speed from a planet

Orbital speed

Orbit Lock

not too slow, not too fast

Time dilation

Event Horizon

closer means slower time

Kepler's laws

Comet Run

fast near the Sun

How to Play

One tap to start, no sign-up needed

Pick a World

Tap the next goal on the galaxy map, or play today's Daily Mission.

Use the Physics

Aim, launch and steer. Gravity does the rest, so learn how it pulls and make it work for you.

Light the Galaxy

Meet each world's goals to light it up, then go for silver and gold. Light all eight to travel to the next galaxy.

Help & Support

Answers to the questions we hear most

Remove Ads

Tap the gear on the main screen. Remove Ads is at the top of Settings. Bought it before or on another device? Tap Restore purchases in the same place. Family Sharing is supported.

Sync & Accounts

You start as a guest. Sign in with Apple or Google in the Account screen to keep your galaxies and leaderboard name on every device.

Delete Your Data

Open Account, then Delete account & data. Your account, progress and leaderboard entries are removed. Or email us and we'll do it for you.

Light Up the Galaxy

Free to play. Every game, every galaxy, the Daily Mission and the leaderboards are free. One optional purchase removes the ads.