click canvas to capture mouse · esc releases wasd fly · space / c up / down · shift fast left mouse dig · right mouse place selected material 1–9, 0, - select material · scroll brush size save map downloads a .vxsand file · load map restores one
WORLD SETUP
margolus cellular automaton · webgpu · dimensions bake into the shaders at launch
advanced parameters ▸ terrain · physics · view · movement
MATERIAL PHYSICS & REACTION TABLE — every density, probability, timer, and flag the simulation uses