A river of glowing specks pours out of a star. Fly up it. Drag to steer, or use the arrow keys or A and D. Catch the bright fuel cells, then press BOOST (or Space).
Two players works best on a tablet: each of you steers in your own half of the screen.
The glowing line is made up: it comes from a story (Project Hail Mary), not from astronomy. Tau Ceti is a real star. Astrophage, the cyan specks you can collect, is made up too (from the film Project Hail Mary): tiny cells that eat starlight.
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Looks only: a colour or a decal never changes how the ship flies. You pay with Astrophage you have collected, never with money. Astrophage is made up, from the film Project Hail Mary: tiny cells that eat starlight.