Accretion: Planetary Sandbox

Unleash the Power of the Cosmos with Accretion: Planetary Sandbox!

Step into the role of a cosmic architect. Driven by a deterministic, real-time N-body physics engine, Accretion allows you to create, destroy, and simulate gravity on an astronomical scale. Whether you want to orchestrate the elegant dance of orbital mechanics or trigger cataclysmic planetary collisions, the entire universe is your ultimate sandbox playground.

🪐 Simulate True N-Body Physics

Experience authentic gravity simulations where every single object exerts a pull on everything else. Launch a massive star, position a delicate web of planets, and watch stable orbits form in real time. Discover how a single rogue asteroid can disrupt a delicate balance, throwing an entire solar system into chaotic, irreversible disarray.

💥 Watch Worlds Collide & Coalesce

Go beyond static models. Smash proto-planets together to watch them merge into massive gas giants, or fracture them into swirling rings of cosmic debris. Experience planetary formation firsthand as stray space rock coalesces into entirely new worlds under the relentless, beautiful force of gravity.

🌌 Complete Creative Control in Your Pocket

Spawn Anything instantly: Place stars, gas giants, rocky planets, moons, and dense asteroid belts with a single tap.

Fine-Tune Parameters: Modify mass, velocity, position, and precise orbital vectors to engineer complex, custom cosmic experiments.

Manipulate Time: Speed up time to watch millions of years of orbital evolution unfold in seconds, or pause the simulation to dissect a cataclysmic collision mid-impact.

Track the Chaos: Visualize orbital paths and gravitational vectors to see the invisible forces shaping your galaxy.

🛸 Built for Creators & Science Enthusiasts

Whether you are a backyard astronomy hobbyist, a science fiction fan, or a casual gamer who loves pure physics simulation, Accretion offers an intuitive, educational, and mesmerizing sandbox experience right in the palm of your hand.

Will your solar system survive the test of time, or is it fated for a brilliant cosmic collapse?

Download Accretion: Planetary Sandbox today and start building your universe!