You Can Now Play Tetris and DOOM in a PDF
Tetris and DOOM have been ported into fully playable PDF files.
Classic retro games Tetris and DOOM have been ported into fully playable PDF files.
As reported by Tom’s Hardware, security analyst Thomas Rinsma created a PDF-based version of Tetris called Pdftris. The game runs directly in any modern browser—just open this PDF link, and it will launch in a new tab.

Pdftris features a classic black-and-white design with controls available via on-screen buttons or by typing WASD into a designated text field.
Additionally, DOOM has also been ported to a PDF, which can be launched from this link. However, it only works in Chromium-based browsers.

DOOM holds the record for most unusual ports, having previously been played in Telegram, ATMs, calculators, an adult toy, and even a living E. coli bacterium.