@dosnostalgic Here's an alt-text description of the video:

The video shows a PDF document displayed in a web browser. The title of the PDF is "doom.pdf". Initially, the PDF is blank. After a second, a dark gray background appears. Then, the first page of the PDF loads, displaying a grayscale version of the original DOOM game. The text "DOOM Shareware" and "Suggested Retail Price $9.99" is visible. There's a section outlining controls: "Controls: a, s, d, w = move; use = space; fire = space; shift+w=sprint; m = map; l,r = weapons". Below that, it says, "Type here for keyboard controls." The bottom of the page shows source code information and a note that the PDF only works in Chromium-based browsers.

The video then shows gameplay of the DOOM game rendered within the PDF, using keyboard controls. The player moves through various levels and fires their weapon. The game's in-game HUD displays health, ammo, and other status information. The controls are used extensively throughout the video. The video ends with a game over screen showing the player's statistics. There is no audio in the video.

Provided by @altbot, generated using Gemini

@dosnostalgic meh
:(

FF latest, built-in PDF-Viewer, Linux

@dosnostalgic

Javascript, I guess?

@dosnostalgic

Mira
@fanta