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Pebble to Star is an idle growth game. Swallow the bodies that drift past and raise a grey pebble into a planet, a star, even a black hole and a galaxy, immersed in an ever-changing universe.
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Match strength key:80+65+50+<50Pebble to Star
SteamAbout Pebble to Star
Pebble to Star is an idle growth game.
Pull in the bodies that drift past and raise a grey pebble into the world you want: a planet, a star, a black hole, a galaxy.
You start as a grey rock in a 1-bit sky. Nothing is timed. What you eat decides what you become.
Left-click to pull, right-click to push
Left-click a comet or a meteor and it falls in, leaving a crater. Hold the left button and sweep to take whatever the cursor passes. Right-click what you don't want and it is flung away. Anything flashing red is on a collision course: take it, or push it off. The heavier you grow, the more your gravity pulls in by itself, and it keeps eating while you are away.

Become the world you want
Open the growth route and pick a destination: an ocean world, an iron planet, a blue giant, a magnetar. A checklist in the corner shows what is still missing. Ice makes oceans and metal makes iron worlds; the mass you ignite at decides what kind of star you become, and how heavy it is when it dies decides what it leaves behind.

From 1-bit to 24-bit
The screen starts in 1-bit black and white. As heat, water and life build up and you grow from layer to layer, it gains color depth bit by bit, until oceans, clouds, rings and nebulae show in full color.

Events ask you to choose
A neighboring planet swings past: move inward, move outward, or hold your orbit. The Sun falls toward you: merge, or push it away. A planetary embryo the size of Mars is aimed at you: a grazing hit makes a moon, and melts the whole surface. Every layer brings choices like these, all the way up to colliding galaxies.

A civilization, from first light to last
Keep a living world stable and a civilization appears: you can see its lights. Then it reaches outward: telescopes, satellites, a space station, starships. But one big impact throws it back into a dark age, or ends it and leaves only ruins.

In the game
How far can your pebble grow?
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