GravityNerd — play with the force that shapes worlds.
Two worlds. One force. Infinite ways to fall.
01 — The Worlds
One force.
Two ways to play.
Gravity shapes planets, trajectories and everything that moves between them. GravityNerd turns that invisible force into something you can see, change and play with.
World 01 · Moonbase Test Chamber One
FloatSpin
Change the rules.
Then see what reality does.
FloatSpin is an open reality sandbox for exploring how gravity, mass, motion and materials behave in the environments where humans may one day live — beginning inside a lunar test chamber at 0.16 g. Push, spin, drop and throw ordinary objects, then flip gravity, kill the atmosphere, or invert the field entirely.
- Weight changes. A 75 kg mannequin still masses 75 kg on the Moon — it just weighs less.
- Inertia remains. Stopping a moving body still takes real work.
- Spin persists. In vacuum, a wrench keeps tumbling.
- Gravity is a vector. Down, up, or eventually anywhere.
World 02 · Orbital Launchpad
GravityFlight
Launch.
Fall.
Fly by gravity.
GravityFlight is a visual orbital physics game. Pick a world, set thrust and launch direction, then watch gravity decide the outcome — from ballistic impact to clean insertion, guided re-entry, or full escape trajectory.
- Earth · 9.81 m/s² — thick atmosphere, guided insertion and deorbit, heat-shield re-entry.
- Moon · 1.62 m/s² — airless. Any grazing miss becomes a lunar orbit.
- Mars · 3.71 m/s² — thin air, wide capture window, easy escape.
Chamber 02 · Experimental
You make gravity
Every object with mass attracts every other object. In a vacuum, even a dust particle will slowly drift toward you. Time is accelerated. Gravity is not.
Gravity is the rule.
Curiosity is the variable.
GravityNerd creates interactive worlds that make invisible forces visible — not by simplifying physics into trivia, but by letting people develop intuition through play.
Roadmap · In the shape of things
The universe is not finished.
New worlds, stranger forces and different ways to test your intuition are already taking shape.
Strange Worlds
Environments where the constants themselves are variables.
Orbit Lab
Design a system. Watch it hold together — or not.
Drop Test
Everyday objects, uncommon atmospheres.
Ready to disturb the universe?
GravityNerd
Play with the force that shapes worlds.