Accretion

Accretion

Released May 2025

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.

60% positive · 40 reviews
Pending
Released · Awaiting evaluation
Pending
Released · Awaiting evaluation

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Steam $7.19 $9.99 −28%
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Details

Developer
Publisher
ValarFerys
Achievements
26
Platform
Windows
Controller
full support
Steam Deck
Not rated
Players
Single-player

About this game

This is an impressive and unique game. You will control your own celestial body, plundering mass in the universe, evolving from a cloud of gas into a supermassive black hole that devours everything.

Astrophysics is the rule of the game

The game uses real physical rules to calculate the mass interactions between celestial bodies, and you will witness:

  • Spacetime distorted by mass

  • Small celestial bodies orbiting larger ones

  • The gravitational slingshot effect propelling bodies at high speeds

  • The unique accretion phenomenon of black holes

  • Celestial collisions creating deadly breaches

  • Supermassive black holes emitting sweeping jets

  • Influencing lower-dimensional universes through magnetic fields and gravity from higher dimensions

  • Dimensional reduction pulling all celestial bodies into one-dimensional space

All physical calculations are precisely balanced between gameplay and academic rules:

  • Orbital calculations are primarily based on Newton's law of gravitation

  • Space distortion calculations are based on relativistic rules

  • Every mass particle is controlled by real-time physical computations

  • The morphology of accretion disks fully considers the gravitational lensing effect

In an ever-changing environment, the motion of mass will exhibit extremely complex trajectories. As the plundering war escalates, the simplest particle effects at the beginning of the game will evolve into a torrent spanning the entire universe. This is a game where the visual effects cannot be predicted in advance, as everything depends solely on the physical rules and the mass you plunder.

Life Rewrites the Laws of the Cosmos

Intelligent life will arise amid celestial collisions and exchanges of mass. When the technological civilization that calls you its homeworld enters the space age, you gain unprecedented, formidable support:

  • An enlarged sphere of gravitational influence

  • Higher movement speed

  • Rapid repair of your mass breaches

  • Virtual decoys and foldspace wormholes

  • They even deploy trap mines and railguns to strike your targets directly

They do not fight to guarantee you victory in this cosmic race, but for their own survival. The lifeforms emerging in the latest version will profoundly rewrite the laws of the universe, delivering an experience unlike anything before.

Distinctive game levels and open scenes

The game offers a series of challenge levels with unique features and different objectives, and the open universe scenes are entirely procedurally generated. You can explore infinitely in any direction, with no boundaries. Your actions will also have a significant impact on the mass transfer between other celestial bodies, determining the course of the entire universe.

Strategy and action gameplay

As your celestial body grows, you will gain various abilities. In the midst of evading and chasing actions, you will need to utilize or combine these abilities wisely to defeat powerful opponents and achieve victory in the cosmic competition.

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