Sediment

SEDIMENT is a pixel-physics sandbox. Fifty materials, and none of them is a picture: sand pours and finds its angle, water floods and freezes, lava crusts into stone, acid eats whatever it touches. EVERYTHING HAS A DENSITY Gold lies below everything else. Wash ore into a basin and the gold settles at the bottom as a layer of its own. Not because a rule says "gold sinks", but because it is heavier than what is around it. EVERYTHING HAS A TEMPERATURE Pour water onto lava and you get stone and a flash of steam. Heat only reaches what it touches: a wall two cells thick is already the limit. That is why a furnace here has to be a chamber with fuel inside it, not a fire beside it. SOME THINGS BURN, SOME EXPLODE Sulphur over cinder makes gunpowder. Gunpowder does not simply burn faster: it turns into a hot expanding gas that lights whatever it reaches. A spirit fuse in a trench carries the flame to the far end. EVERY GRAIN IS SIMULATED These are not particles on top of a picture. The whole world is cells, and every rule is an exchange between neighbours. Mass is never created or lost by accident. MAKE YOUR OWN MATERIALS A material is a JSON entry: density, phase, what it melts into, what it absorbs. The editor is in the game. Publish a pack to the Workshop and it shows up in someone else's palette. SHARE YOUR WORLDS Save a level, publish it, subscribe to someone else's. A level declares which packs it needs, so a shared world never opens as grey stone where the materials should be. WHAT ELSE IS IN THERE - nine lessons that teach by doing, not by reading - twenty tasks with real goals - Picture: turn any image on your disk into materials - full gamepad support - twelve languages