Unity Engine folks have announced they are developing a web browser based version of their game graphics engine that will eliminate the need for any file downloads.
The new venture is being worked on in association with mega internet company Google. On their official blog site the company states that if you use the Google Chrome web browser you will be able to play Unity Engine-based games "using just default access and no additional installation or user interaction. It's kind of wild!." Unity is already calling this move a"potential game changer for rich web applications and games in particular." There's no word yet on when these features will go live but Unity says more info will be revealed in the coming months.