Sounds like a terrific way to break the potential boredom of a space trip. I think you need some highly desirable prizes for winning, for each side. On earth, money is valued highly as a prize. In space, I suspect that some sort of sexual favors may rate far above money. The broadcast rights to game progress should be marketable, so long as all players share a good portion of the gross. I recall being glued to the Reykavik games from start to finish, and I miss the demise of televised games due to the use of computers.