Falling Sand — a free browser physics sandbox (sand, fire, lava, acid, C-4...)
Game Title: Falling Sand (OC)
Playable Link: https://devdynaf.github.io/falling-sand/ or the main website https://devdynaf.github.io
Platform: Browser (HTML5/JS)
Description: Falling Sand is a free, browser-based particle physics sandbox inspired by cellular automata games. You paint elements like sand, water, fire, oil, lava, acid, ice, glass, plants, steam, and even C-4 directly onto a grid, and watch them interact in real time using gravity, fluid flow, combustion, freezing, and chemical reactions. Sand piles and settles naturally, water flows and finds its level, fire spreads and burns flammable materials, lava melts what it touches, and acid corrodes nearby elements. The simulation runs entirely client-side with no backend, optimized to maintain 60 FPS on a 240×135 grid even with hundreds of active particles. There's no account, no download, and no install — it just opens and runs instantly in any modern browser, on both desktop and mobile. The control scheme is simple: left-click to paint or hold to pour, right-click to quickly erase, and scroll wheel to adjust brush size, so there's almost no learning curve before you're experimenting with how different elements interact with each other.
Free to Play Status: [x] Free to play
Involvement: I'm a solo developer (still in school) and built this entire project myself — game design, physics simulation logic, and UI. I used AI tools to assist with parts of the implementation and with the site's SEO/metadata setup, but the core cellular-automata physics, feature decisions, and debugging are my own work.
Any feedback on design or just in general is welcomed, especially on what features yall want to be added or SEO guidance