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