id Software and its new owner Bethesda Softworks are announcing today a new 20th anniversary edition of Wolfenstein 3D, playable as a web-based browser game and a mobile game.

The free-to-play browser game is a classic version of the pioneering first-person shooter game that debuted in 1992. It was a precursor to the shooting experience of 1993’s Doom and it helped launch the biggest genre in video games. At the time, Wolfenstein’s 320 x 200, 256-color VGA 3D graphics were stunning. Today, what once took a high-end PC to run can now be run inside a web browser. Wolfenstein had enemies that could be seen from different angles.

Bethesda also released a video featuring John Carmack, technical director of id Software, sharing his insights into the creation and the development of Wolfenstein 3D while playing the game. Check out the video below. Brings back memories, doesn’t it? Wolfenstein 3D Classic Premium is also free for a limited time on the iPhone, iPad, and iPod Touch.