Walk on real planets.

Land on the Moon, Mars, Venus and 3,924 real exoplanets. Their true gravity, heat and air change how you move, what you hear and how long you survive.

▶ Play free in your browserBrowse the planets

No download, no account. Works on phones, tablets and computers.

Real physics

Jump six times higher on the Moon. Feel Venus crush your suit in seconds. Drop a hammer and a feather and watch the air decide.

3,930 worlds

Every confirmed exoplanet small enough to stand on, built from the NASA Exoplanet Archive, plus 6 Solar System worlds with real NASA maps.

Survive the trip

Pick 3 of 6 suit modules, complete 3 surveys and make it back to your lander before the oxygen runs out.

See it

Walking on the Moon in WorldwalkThe orange haze and methane lakes of TitanCompare mode: a hammer and a feather falling on two worldsChoosing suit modules before landing

Start with these

Mercury0.38× EarthVenus0.9× EarthEarth1× EarthMoon0.17× EarthMars0.38× EarthTitan0.14× Earth
Proxima Cen b1.01× EarthBarnard b0.58× EarthRoss 128 b1.14× EarthTeegarden's Star b1.05× EarthGJ 1002 b1.02× EarthGJ 367 b0.93× EarthWolf 1069 b1.08× EarthGliese 12 b1.1× EarthTRAPPIST-1 b1.1× EarthTRAPPIST-1 c1.09× EarthTRAPPIST-1 d0.62× EarthTRAPPIST-1 e0.82× EarthTRAPPIST-1 f0.95× EarthTRAPPIST-1 g1.04× EarthTRAPPIST-1 h0.57× EarthLHS 475 b0.96× Earth

See all 3,930 planets →

Honest about what we know

Every value in the game is labelled measured, estimated or imagined. Sizes, masses and temperatures come from real observations. No one has seen the surface of an exoplanet, so the ground and sky you walk under are an informed guess built from those numbers.

Explorer Pass

Worldwalk is free. The Solar System and 42 featured exoplanets unlock as you play. The optional one-time Explorer Pass opens the full catalog and removes ad breaks.

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