Drop glowing motes into the basin. Two equal motes that touch fuse into the next tier — bigger, brighter, worth more.
Chain fusions for a combo. Climb the ladder all the way and a mote goes supernova — a blast that clears the field and the sediment. But a small mote left stranded too long fossilizes into immovable floor, and if the stack crests the rim line it's over.
move aim tap / click drop P pause
drag aim tap drop ❙❙ pause
COLLAPSE
0
PAUSED
press P to resume
Equal motes fuse: SPARK → EMBER → STAR → … → NOVA. Chain fusions fast for a multiplier. The rim closes in over time and stranded small motes fossilize into dead floor — the basin squeezes from both ends, so keep fusing upward. Only a supernova clears sediment and buys room.