Life & fun · alternatives · 2026
24 alternatives to Phynix, a Physics Sandbox with Unix-like Commands
Create physics simulations using Unix-like commands. - mion/phynix
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Phynix, a Physics Sandbox with Unix-like Commands launched in 2013; newer entries below may have overtaken it.
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Hi HN community, I’m Zach, founder and CEO of Warp, and am excited to show you Warp, a fast Rust-based terminal that’s easy to use and built for teams. As of today, Warp is in public beta and any Mac user can download it. It works with bash, zsh, and fish. The terminal’s teletype-like interface has made it hard for the CLI to thrive. After 20 years of programming, I still find it hard to copy a command’s output; I always forget how to use `tar`; and I always have to relearn how to move my cursor. To fix fundamental accessibility issues, I believe we need to start innovating on the terminal,…
2022 · warp.dev · its alternatives →
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2017 · htmlpreview.github.io · its alternatives →
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2020 · pakastin.github.io · its alternatives →
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Hey HN! We are the co-founders of Elodin (https://elodin.systems/), a code-first physics simulation framework. We just open-sourced our core libraries on Github: https://github.com/elodin-sys/elodin Have you ever wondered what happens when a satellite is first placed into orbit? It turns out that often, they tumble out of control, end over end, in a miraculous fight against stability. Check out our demo here of a control system attempting to rectify this: https://app.elodin.systems/sandbox/hn/cube-sat The spacecraft does not…
2024 · github.com · its alternatives →
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A colorful interactive physics simulator with thousands of balls, but in your terminal! - minimaxir/ballin
Jan 2026 · github.com · its alternatives →
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Author here. RMUX started from a frustration: I've used tmux for years and got tired of scraping output with grep and sleeps to automate anything. So I rebuilt the multiplexer from scratch in Rust, with a programmable layer on top. Two surfaces: a tmux-compatible CLI (~90 commands, your keybindings just work), and a typed async Rust SDK on the same daemon — stable pane IDs, structured snapshots, locator-style waits. The idea is Playwright-style automation, but for terminals. Native on Linux, macOS, Windows (real ConPTY, no WSL). Demos and docs at rmux.io. Happy to answer questions about the…
May 2026 · github.com · its alternatives →
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I didn't realize Universe Sandbox ran on MacOS, and I was in the mood to play around a bit. Some functions it's got: - Random system generation - Sonification is super fun too - Habitability Simulation (Just for fun, don't cite this please) - Replacing, spawning, deleting objects I've had tons of fun building this, so I hope someone else can share the joy. It's free and runs in the browser. I'd love to hear any feedback. I think this is at a state where I might leave it as it is, but if people are interested in other features, maybe I'll keep working on it. I've kept saying I'll stop working…
Dec 2025 · luna.watermelonson.com · its alternatives →
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Imajourn▲160We are now on the Apple App Store with multiple new features
Dec 2025 · imajourn.com · its alternatives →
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I started teaching my daughter physics by showing her how things actually work - plucking guitar strings to explain vibration, mixing paints to understand light, dropping objects to see gravity in action. She learned so much faster through hands-on exploration than through books or videos. That's when I realized: what if I could recreate these physical experiments as interactive simulations? Lumen is the result - an interactive physics playground covering sound, light, motion, life, and mechanics. Each module lets you manipulate variables in real-time and see/hear the results…
Jan 2026 · projectlumen.app · its alternatives →
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Hi HN, I’m Mike, the founder and creator of Wave, a cross-platform open-source terminal that supports inline rendering, modern UI, and persistent sessions. I love the command line; I’ve been using it for over 25 years, starting with a Linux box I made with spare parts in my college dorm room. But while other devtools have been modernized, the terminal has been stuck, with the same basic functionality for over 40-years. What if your command line terminal could display more than just text? That’s crazy right (I can hear the screams of thousands of graybeard sysadmins). Not all the time, but…
2023 · github.com · its alternatives →
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I built this because I was always creating machines on GH actions to test builds on different OS, and I wanted a tight CLI that could do it. I always saw Actions as this great resources and ephemeral machines you could do dev work in just were a natural way for me to work, so this grew out of that workflow. I didn't expect it to blow up, so it wasn't 100% finished when I posted it. But it should stabilize pretty quickly. Happy to know what you think and talk about it.
May 2026 · ghost.charity · its alternatives →
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Pure C# 3D real time physics simulation library, now with a higher version number. - bepu/bepuphysics2
2019 · github.com · its alternatives →
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Advanced Physics Library designed for Javascript and Node.JS - AbhiAgarwal/phys.js
2013 · github.com · its alternatives →
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PrettyMux▲73I built PrettyMux as a native Linux terminal workspace for multitask workflows and keeping track of my agents. It’s a GTK4 app built on Ghostty/libghostty, with split panes, workspaces, vertical tabs, notifications, project-aware tabs (shows favicons/logo automatically), and an in-app browser so terminals and docs/tools can live side by side. I started it because I wanted something tmux-like for modern GUI workflows on Linux, but native and not Electron, there is cmux but only available on macos (prettymux compiles on windows and macos too but not tested for now there) It’s…
Apr 2026 · prettymux.com · its alternatives →
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(space = reset) Fluid mechanics is an extremely interesting topic and I have been creative coding for a couple of months now. Therefore I started working on flow fields in processing. It had so much fun playing around with the different parameters in this project, I decided to rewrite in p5.js an added a control panel. You can change most of the parameters (within some constraints I thought to be reasonable), randomize the values and export and import settings. Hopefully some coders here get inspired and also join the great creative coding community.
2024 · synapse.nugatio.com · its alternatives →
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2018 · novoselrok.github.io · its alternatives →
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A native macOS terminal app built on Ghostty for running and supervising coding agents - yuuichieguchi/Calyx
Mar 2026 · github.com · its alternatives →
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A very fast and scalable physics engine, based on Box2D. - mtsamis/box2d-optimized
2020 · github.com · its alternatives →
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Real-time 2D gravity sandbox with causal propagation (finite c), GW-strain heatmaps, and a virtual LIGO probe. Numba JIT, CPU-only. - alessandro-pioli/AstroCausal_Engine
Sep 2026 · github.com · its alternatives →
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Also compare
- Warp, a Rust-based terminal alternatives
- A 2D Physics Simulator in JavaScript alternatives
- Simple 2D car physics with JavaScript alternatives
- Elodin – A better framework for physics simulation alternatives
- An interactive physics simulator with 1000’s of balls, in your terminal alternatives
- Rmux – A programmable terminal multiplexer with a Playwright-style SDK alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →