These days you can run Doom anywhere on just about anything, with things like porting Doom to JavaScript these days about as interesting as writing Snake in BASIC on one’s graphical calculator.

Using Emscripten, a compiler that compiles C and C++ source code to WebAssembly, they compiled Doom to asm.js, a subset of JavaScript. In short, it's how ading.dev got Doom running in a PDF.

and cybersecurity,” the Doom PDF project utilizes the file format’s inherent Javascript support to recreate the iconic first-person shooter in text. It runs poorly and plays even worse ...

Here at Ars, we're suckers for stories about hackers getting Doom running on everything from ... Adobe Acrobat included some robust support for JavaScript in the PDF file format.