Particle Nebula: Cosmic Sandbox

Manipulate thousands of glowing cosmic particles in a real-time gravitational sandbox. Create swirling accretion discs, trigger stellar explosions, and craft mesmerizing stellar phenomena.

Particle Nebula: Cosmic Sandbox is an interactive digital physics laboratory and meditative visual playground built on high-performance Canvas particle computation. Players interact with a cloud of over 10,000 luminous cosmic bodies that obey gravitational attraction, velocity dampening, and vortex turbulence. By placing attractive gravitational singularities, repellent dark-energy wells, and kinetic pulsars with the mouse or touchscreen, you can sculpt swirling spiral galaxies, turbulent plasma storms, and dynamic orbital systems. The simulation features customizable color palettes, particle lifespans, and velocity trails, accompanied by ambient audio that responds dynamically to particle velocity and density.

• 1Hold the left mouse button to generate an attractive gravitational well that pulls particles into orbit.
• 2Click the right mouse button to create a repulsive burst that scatters dense particle clusters outward.
• 3Move the cursor in a wide circle while holding attraction to generate an elegant rotating spiral galaxy.
• 4Adjust gravity strength and particle friction via the on-screen settings to explore unique physical states.