Along with Kenneth A. Mitsui, designed the science fiction tactical ship combat game Starpower in 1979. The pair planned to publish a series of games and supplements under the title of "The Four Empires Series". The status of any of these other products is unknown.
Starpower: Tactical Ship Combat in the 29th Century
Starassault: Ground combat in the 29th Century
Supplement to Starpower/Starassault