Power City, Siemens, Disney - Power City was an installed game projected on the floor in Disneyland's Innoventions exhibit while it was open. The idea was to build up the most efficient city by pushing resources around with the stick show in the picture. Interestingly, it had a precursor that alternated between hockey and soccer, and allowed two people to play a 2D version of these sports. It didn't use motion tracking - instead it simply calculated which parts of the project were being interrupted, so you could play with your whole body. Sadly, the precursor appears to be undocumented, though I definitely remember playing with it as a kid. In either case, both of these installations were probably early inspiration for how our game might work.