On a technical level it's actually not that impressive. Mozilla got BananaBread/Sauerbraten running with WebGL on netbooks over a decade ago, with much more advanced graphics than Xash3D:
The Half Life "app" above actually just wraps an existing Emscripten port in an IFrame. Puter does provide an abstracted filesystem (and other "OS" features), but I don't think the app above uses that, so it's no different than if you went to `data:text/html,IntralexicalOS!<br><iframe src="https://pixelsuft.github.io/hl/" style="width:50%;height:50%">`.
But actually I think putting together such a simple technical concept that works this well is the impressive part, that hasn't been done before. You can now take any existing web build of any app, and by adding a couple calls to `puter.fs.write()`, deploy it to a familiar virtual workspace where you get multitasking, cloud storage, and interoperation with other apps, for free.
https://kripken.github.io/misc-js-benchmarks/banana/index.ht...
https://wiki.mozilla.org/HTML5_Games/BananaBread
The Half Life "app" above actually just wraps an existing Emscripten port in an IFrame. Puter does provide an abstracted filesystem (and other "OS" features), but I don't think the app above uses that, so it's no different than if you went to `data:text/html,IntralexicalOS!<br><iframe src="https://pixelsuft.github.io/hl/" style="width:50%;height:50%">`.
But actually I think putting together such a simple technical concept that works this well is the impressive part, that hasn't been done before. You can now take any existing web build of any app, and by adding a couple calls to `puter.fs.write()`, deploy it to a familiar virtual workspace where you get multitasking, cloud storage, and interoperation with other apps, for free.