Every week we spotlight the most intriguing world the community has forged. Think you can build something rarer, stranger, more alive? Create your planet — the most unique one could be featured next.
Describe a world in plain language and the assistant sets its elements, orbit, star and spin — then checks the result against the same simulation that runs everything else here. Ask it about a planet and it answers from that world’s own numbers. It can also build any of 6,347 real exoplanets straight from NASA measurements.
Every confirmed planet NASA has measured well enough to build — its real mass, orbit and star, fed into the same simulation that runs everything else here. It decides what each one becomes. 8 come out Earth-like.
Gas Giant2,031 planets
Lava World1,044 planets
Ice Giant858 planets
Barren962 planets
Water-Rich69 planets
Earth Like8 planetsCreate a free profile to save every planet you build — keep them private, or share them to the public gallery. Link your worlds into whole star systems, and set them shining in a galaxy that grows with every creator. An account also unlocks the AI assistant, so you can describe a world in plain language and have it built for you.
Create a free profile and keep every world you build. Choose which stay private — shared only by link — and which go public in the gallery.
Open your libraryArrange your planets into whole star systems — set their orbits around a shared sun, with real orbital physics deciding what fits, and watch the system come alive.
Build a systemDescribe a world in plain language and the assistant sets the elements, orbit, star and spin — then checks the result against the same physics you do. Ask it why a planet scored what it did, and what to change.
Try the assistantEvery public system shines in one growing galaxy — fly the map, drop into any star system, and land on worlds built by the whole community.
Fly the galaxyAstronomers Find a Sub-Neptune Orbiting Completely Backward Around a Red Dwarf
A backwards orbit is a smoking gun for a turbulent past, hinting at a close encounter or migration that flipped the planet and revealing how planetary systems get scrambled after they form.
Build an Ice GiantStellar Pulsations Hint at a Habitable-Zone Planet Around a Massive Star
Planets around hot, massive stars are notoriously hard to spot, so reading the star's own vibrations to find one in the habitable zone could open up a whole new class of worlds to study.
Webb Detects Ammonia and an Unexpected Chill on a Distant Giant Planet
Pinning down ammonia alongside water and methane sharpens how we fingerprint alien atmospheres, and the surprise chill suggests the planet's relationship with its star is more complex than the textbooks assume.
Build a Gas GiantAstronomers Detect the First Confirmed Radio Signal From an Exoplanet
Catching an exoplanet's radio 'voice' for the first time gives astronomers a brand-new way to measure alien worlds' magnetic fields — a clue to what is happening deep inside them.
Build a Gas GiantAncient meteorites reveal a powerful force that helped build the Solar System
Magnetism, not just gravity, may have helped assemble the planets — refining the story of how rocky worlds like ours came together from a swirling disk of dust and gas.
Build a RockyHow these worlds are found, what the measurements honestly tell us, and what might live on them.
As an Amazon Associate I earn from qualifying purchases — if you buy through these links, TerraForge may receive a small commission at no extra cost to you.A short guide for a first visit. It covers what you can build, what every button on the scene does, and what happens to a world once you save it. No prior experience with space or 3D software needed.
Elements, star, orbit and moons — and what the six-second formation is showing you.
The globe, the orrery, the mountains, the magnet and the camera, one by one.
You get a link without signing in. Here is what an account changes.
Put your worlds around one star, and let orbital physics decide what fits.
