Pocket Galaxy vs Gravity Physics

Place a moon, let go, and watch it fall into orbit around the planet you just made. Pocket Galaxy is a 3D gravity sandbox where realistic space physics meet total creative freedom. Spawn planets, stars and gas giants, place them in orbit, and watch a living solar system come to life. Then take it apart: heat worlds until they glow, freeze them solid, explode them, or smash two together. No levels, no timers, no pressure. The sandbox is the whole game, and nothing in it is on rails. What you can do • Build a universe from a huge variety of procedural planets, stars and gas giants • Simulate realistic gravity and orbital motion in an open 3D sandbox • Reach for cosmic tools: asteroid storms, solar rays, ice rays and explosions • Tune each planet's gravity, size and orbit, even give it repulsive gravity • Unlock new planet and star types as you experiment • Nurture a world until life begins, and follow it in the Planet Journal • Capture and share screenshots of your universe • Save and load your galaxies anytime Nudge an orbit and let gravity take over, engineer a perfectly balanced system, or wipe it out in a single collision. The sandbox is entirely yours. Free to download and play, with ads. An in-app purchase removes them. No account required, and it suits all ages.

Gravity is a real-time N-body physics simulation of our solar system — fly a spacecraft through accurately modeled orbits, gravity wells, and atmospheres, all rendered in a clean top-down view of the ecliptic plane. Every body uses real physical data: mass, radius, orbital elements, and atmospheric density where applicable. Gravity between all 26 bodies — Sun, planets, major moons, and dwarf planets — is computed live using velocity Verlet integration, so orbits, perturbations, and gravity assists emerge naturally from physics, not scripted paths. FEATURES • Pilot your own spacecraft — configure engine count, thrust, and mass, then launch from Earth • True N-body gravity — every body pulls on every other body and on your ship, in real time • Realistic atmospheric drag and heating — feel the difference between skimming Earth's atmosphere and diving into Venus or Saturn • Time controls — speed up months of orbital motion or slow down to precision-dock in real time • Trajectory prediction — see where your current heading will take you before you commit • Flight trail — trace your path across millions of kilometers • Extended telemetry — track speed, altitude, gravity, thrust-to-weight ratio, dynamic pressure, hull temperature, time dilation, and more Whether you want to attempt a Hohmann transfer to Mars, slingshot past Jupiter, or just watch the Moon orbit Earth in fast-forward, Gravity gives you a physically accurate sandbox to explore the mechanics of our solar system.