For vector games and demos. And by vector I mean old-style CRT line-drawing displays, not Scratch's SVG vector drawing. These will usually be pen projects. I've included some where the display doesn't look like something that could be generated on a vector display - as long as by changing the pen width or the sprite images, it could be easily converted into something that would run on a vector display. At some point in the (distant) future I would like to take some of these projects and convert them (eg to C) so that they will run on a real vector display such as the Vectrex, or Zonn Moore's Zektor card for PC's.