Clear the Hull
Aim the brass turret and break numbered plates before the expedition line collapses. Auto upgrades are on to keep the run moving; turn them off in Classic if you want to spend every coin yourself.
Expedition Boiler Lit
Professor Prometheus has a ship, a rumor, and one deeply irresponsible business plan. Choose your run, bank the cash, and chase the neutron star.

Cogsworth wants one more inspection. Ledger wants an exit clause. Fire anyway.

Etch your initials into Ledger's brass book. Classic, Speed, and Timed each crown a different kind of reckless genius.
Upgrades
Guide

The machine rewards nerve: split plates, harvest neutron fuel, and spend every coin before the next wave bites the rail.
Aim the brass turret and break numbered plates before the expedition line collapses. Auto upgrades are on to keep the run moving; turn them off in Classic if you want to spend every coin yourself.
Crack neutron stars to flood the boiler. When the gauge screams, drop neutron bombs down your aim line and tear open the board.
Classic rewards survival, Speed races a two-minute clock with fallen-block time penalties, and Timed keeps sending faster pressure waves until the rail bites.