Starts with the letter 'Vor'
- Vortex Chess. Ortho-chess with the inclusion of a new piece: the Portal. By Robert LeRoy.
- Vortex Chess. Similar to Warp Point Chess only with "portals" that are more dynamic and split between the two players... Author: Jeremy Gabriel Good. Inventor: Robert LeRoy.
|1 'Game' entry listed||1 'Play by mail item' entry listed|
|1 'In a category all its own' entry listed|
Total items listed: 2