Isotropolis - CSS3 3D Rotating City
In development, a html5 game: Isotropolis. This is created using CSS3 perspective properties to render a 3D world. All the buildings and cars have 5 faces that are positioned accordingly to create a cuboid (bottom face can't be seen so there's no point in adding it) using translate transform property.
Inspired by SimCity, of course.
This demo is currently supported by Webkit browsers only. FF10 and IE10 will hopefully support it too!