I've always been quite keen on the slightly blurry, unreal quality of 3D images (perhaps it was that View-Master I had as a child). It seems a shame that CityScape and CryEngine are not able to produce native 3D output (ok I know CryEngine 3 is able to in its latest iteration, but I don't have that). After some lateral thinking and with a little experimentation it has proven relatively easy to produce convincing stereo image output, albeit manually in a rather tedious, hit-and-miss process. For the examples below, left and right eye images were generated by manually introducing a slight tracking motion to the camera view between captured stills. I've combined the two images using the excellent, and free, Anaglyph Maker by Takashi Sekitani (which I should add also support output for interleave shutter glasses).
These examples (which are red-cyan anaglyph and so need the funky eye-wear) are from CityScape, I'm working on similar output from CryEngine, which since it offers better camera control should make anaglyph 3D movies a possibility too.