Yes, you have read that correctly. In an attempt to show off the power of HTML5 and its GWT engine, Google has created a port of Quake 2 – proving that a lot of people have a lot of time on their hands. Anyway, it is not an April Fools joke, and you can install it and battle your friends (because it is also multiplayer!). However, don’t expect to use Firefox or (the dreaded) Internet Explorer as they won’t work. You basically need Google Chrome/Chromium or Safari to play the game. Why? In a nutshell, they have a similar method of reading the HTML code.
According to the Googlers:
So have fun!