As Syzygy and Nutting prepared for the MOA show, Bushnell learned that another pair of engineers, Bill Pitts and Hugh Tuck, were also creating an arcade version of "Spacewar!" In August 1971 Bushnell called Pitts and Tuck, who were operating as Mini-Computer Applications, so that they could meet and discuss their solutions to the problem of running "Spacewar!" on an inexpensive computer. Pitts and Tuck were developing a prototype machine of "Galaxy Game" when they met with Bushnell; the game, however, while a faithful recreation of "Spacewar!", ran on an externally-connected DEC PDP-11 with a Hewlett-Packard 1300A Electrostatic Display, and the total cost of the prototype unit was . The Syzygy duo were relieved, though also somewhat disappointed, to find that "Galaxy Game" was not using an innovative solution Syzygy had missed to build an economically-competitive arcade game. Pitts and Tuck, conversely, felt that "Computer Space" was a pale imitation of "Spacewar!", while "Galaxy Game" was a superior adaptation of the game. They eventually produced two game prototypes, both displayed in the Stanford student union building, but never produced the game commercially due to the high cost of the cabinet.