Accretion
Simulate being a celestial body in an open universe, using the rules of relativity and astrophysics to plunder mass and gradually evolve from a gas cloud into a planet, a star, or even a supermassive black hole.

Very Positive · 398 reviews
80% positive (320 / 398)











Master momentum in this unique jumping game that features no jump button! Preserve your potential energy and fall to new heights as you solve these clever puzzles and maneuver your way to victory.
Released
September 10, 2020
Price
Platforms
macOS · Linux · Windows
Developer
Publishers
Last sync
September 26, 2026
What goes up must come down… and what comes down must be bounced! Send momentum from one block to another to shoot them around the map. Cleverly conserve momentum to navigate around the map and flick all the switches but be careful; once you’re down there’s no way back up; this platformer has no jump button.
Each of over 120 levels features four pairs of switches, but which switch goes with which? Figure out which pairs need pressing and how to get there to solve each unique puzzle.
Push the limits of gravity and as you explore 10 worlds with their own unique mechanics, bonus levels, challenges, and secrets!