Interesting...<p>One robotics simulator that never seems to get any love is this one:<p><a href="https://assemblino.com/" rel="nofollow">https://assemblino.com/</a><p>Open source, browser-based, javascript, webgl, and can even control an Arduino version of your robot (via node); I'm not sure why it's such an underdog, but I suspect it's partially the name.<p>Note - a working github path is:<p><a href="https://github.com/omni360/assemblino.js" rel="nofollow">https://github.com/omni360/assemblino.js</a><p>Not sure why the links are broken on the page - maybe this project is "dead" - but the source lives on I guess...