This Ji person turned out to be quite the allegory of the present moral state of humankind, didn't he? Is there any aspect of the original concept he didn't corrupt?

What's the bet he either didn't actually play the game, or played several times?

One kind of signposts the gameworld should have. Gravestones. Enter your name to play; when you die the game's graveyard gets a new headstone. Would show up... Ah! (slaps forehead) no - of course cheaters would use a different name each time. But still... a graveyard would at least show how many times the game had been played. Maybe the epitaphs could record the manner and time of death?