Josserand.se
Click a letter to turn it into powder. Drag the sun to move its gravity well; consumed material grows and changes its color. At critical size it swallows the asteroid and remaining material, then collapses into a supernova. Close, slow dust condenses into solid planets with one pixel of area per grain. Drag a planet and release to throw it. Double-click a planet to disintegrate it. The planet button toggles solid planet formation in stage two; switching it off returns planets to dust. Gentle contacts combine planets; glancing collisions bounce and hard impacts release material back into dust. Hover over a planet to inspect its current state. Environmental percentages are visual proxies, not physical units. Large grazing stellar encounters can strip hot debris from planets. Slow dust impacts feed planets with small contact puffs. Fast grains deflect and excavate planet material into dust. Larger planets become unstable and split. A sufficiently large planet ignites into a new sun, grows as it consumes surrounding material, and repeats the supernova cycle at critical size or once all material has been consumed. Pointer gravity can be latched on or off with the crosshair button or G; other pointer interactions still work while gravity is off. Hold empty space to pour particles with a wide brush; the dust stage pours more slowly. Dragging throws grains with the momentum of your movement. Arrow keys move the brush; Enter interacts. D disintegrates all letters. L restores the letters and platform while keeping the sun in stage one, and sends the current reborn sun through a supernova in stage two. This action is unavailable before a star forms or while a supernova is already underway. R resets everything. G toggles pointer gravity. Space pauses.