I think we should stay away from latin for the same reason we wanted BYOAC spelled out: not everyone knows what it means.
In no particular order of prefference...
GAME NOT OVER - simple, short, doesnt get to fancy, everyone know's what GAME OVER is from
GOOD FOR ONE CREDIT - as someone said, it states the functional truth.
Didnt really have a third choice. "The Game Never Ends" I guess. (edit: should read: "The Game is Never Over")(edit2: my third choice is posted below)
One Coin To Rule Them All is cool, but do we want a Lord of The Rings reference on this coin?