Team Fortress 2D is a CS2D mod with many features of Team Fortress 2, for example: 9 classes, some game modes, custom maps, lots, and lots of downloadable maps (compatible with CS2D), and many more! It just needs a community :)
Tf.cs2d.nl
The (almost) perfect recreation of the first teaser trailer of Team Fortress 2 now in 2D!
Better quality: Youtube.com
wow NICE!