About DustSim
DustSim is a particle simulator that runs on your graphics card, letting you watch a huge cloud of independent particles pulled around by gravity in real time. You can place attracting masses and spawn new particles yourself, or load a ready-made scenario and watch it play out.
The default setup moves 262,144 particles at once, and the settings let you raise that a long way on a strong computer, into the millions. Each particle reacts to the masses on its own, so a few well-placed points of gravity turn into glowing spirals, rings, streams and collisions.
The scenario list is a good place to start, with setups like Stable orbits, Tidal force, Collision, Moon with ring and Two orbiting poles, plus several negative variations. You can play DustSim online here using only a mouse.
How to Play DustSim
- Pick a scenario from the list on the left to load a ready-made setup.
- Choose Empty if you want a blank space to build your own.
- Use the tool buttons above the list to switch tools, then click in the space to place masses or spawn particles.
- Open the settings to raise or lower the particle count to suit your computer.
- Sit back and watch the particles orbit, stretch and collide.
What to Expect in DustSim
DustSim is a sandbox, so there's no score, no levels and nothing to beat. Think of it as a digital lava lamp you get to stir: calming to watch, fun to poke at and a little hypnotic when a big ring of particles starts to turn.
How smoothly it runs depends on your graphics hardware. A strong desktop handles big particle counts easily, while an older laptop or Chromebook may do better with the default amount or less. It's mouse-only, so there are no keys to learn. Try DustSim free and see how far your machine can push it.
Tips for DustSim
- Watch the frame counter in the top corner and lower the particle count if it drops.
- Start with a preset like Stable orbits to see how gravity shapes the cloud before building your own.
- Place two masses close together and watch how the particles split between them.
- Raise the particle count on a powerful computer for denser, smoother clouds.
- Use a large browser window so the whole cloud fits on screen.
Who Made DustSim
DustSim was made by Kodub, who released it on itch.io. It runs on Three.js in the browser and uses your GPU to do the heavy lifting. FunClicker embeds the creator's own version so you can play it here without downloading anything. We did not make the game, and the credit for its design, code, and art belongs to its creator. You can find the original on the DustSim page on itch.io.
FAQ
Is DustSim free?
Yes. DustSim is free to use here, with nothing to buy and nothing to install. It runs in your browser and leans on your graphics card, so a computer with decent graphics gives the smoothest results. You only need a mouse to place masses, spawn particles and switch between the ready-made scenarios.
How do you play DustSim?
Pick a scenario from the list on the left, or choose Empty to start from scratch. Use the tool buttons to place attracting masses and spawn particles, then watch gravity pull everything into orbits, rings and streams. Open the settings to change how many particles the simulation runs, depending on how powerful your computer is.
What is the goal in DustSim?
There's no goal in DustSim. It's a physics sandbox and particle simulator, so you set up masses and particles and watch what happens. You can treat it as something relaxing to watch or as a place to experiment with orbits and collisions. Either way, the fun comes from tinkering and seeing the results.
Who made DustSim?
DustSim was made by Kodub, who released it on itch.io. It's built with Three.js and uses the graphics card to simulate a huge number of particles in real time. FunClicker embeds the creator's own web version and links back to the original so the credit stays where it belongs.
Can I play DustSim on a Chromebook or phone?
DustSim runs on a Chromebook, but it leans hard on graphics, so lower-powered machines may do better with the default particle count or fewer. Phones are hit or miss: the simulator is built for a mouse and a big screen, and phone graphics vary a lot. A laptop or desktop with decent graphics gives the best results.
Is DustSim unblocked at school?
DustSim unblocked access depends on your school's network. The simulator needs only a browser tab, with no download, but schools set their own filters and we do not control them. If FunClicker opens on your network, the game should load as well, though older school laptops may need a lower particle count to run smoothly.
How many particles can DustSim handle?
DustSim starts with 262,144 particles, and you can raise that number in the settings. On a powerful computer with a strong graphics card, it can run particle counts in the millions in real time. On weaker hardware, stay closer to the default. Watch the frame counter in the corner to see how your machine is coping.
What if DustSim runs slowly?
Open the settings and lower the particle count. DustSim does its work on your graphics card, so performance depends on how strong that card is. Closing other tabs helps too. Once the frame counter in the corner looks steady, you can try nudging the count back up a little at a time to find your machine's limit.
