An interactive physics simulator with 1000’s of balls, in your terminal
A colorful interactive physics simulator with thousands of balls, but in your terminal! - minimaxir/ballin
An interactive physics simulator with 1000’s of balls, in your terminal launched on January 19, 2026 with 75 votes, #452 of 14,584 launches that month and more than 95% of that year's launches.
In plain words
An interactive physics simulator that runs in the terminal, capable of displaying and animating thousands of balls simultaneously. It's designed for developers who want to explore physics simulations or visualize particle systems without leaving the command line. The simulator offers interactive controls to manipulate the physics environment in real time, making it useful for experimentation, testing, or educational purposes related to physics and particle behavior.
written from the facts on this page · September 2026
From the sources
A colorful interactive physics simulator with thousands of balls, but in your terminal! Disclosure: This crate was developed with the assistance of Claude Opus 4.5 initially to answer the shower thought "would the Braille Unicode trick work to visually simulate complex ball physics in a terminal?" Opus 4.5 one-shot the problem , so I decided to further experiment to make it more fun and colorful. The full list of prompts used with Claude Code is present in PROMPTS.md . # macOS Apple Silicon curl -sL https://github.com/minimaxir/ballin/releases/latest/download/ballin-macos-arm.tar.gz | tar xz # macOS Intel curl -sL…from github.com
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