Good points about off chain gambling. The plan here is to recycle this post and make it more attractive. Gamblers need to be aware that these tokens are not worth mining due to an expected loss, you can buy them for cheaper. Gamble for fun, not for profit.

Random prizes don't really increase one's expected return by a significant amount. Placing first on the @krytogames leaderboard does but you would have to spend an entire day gambling or make high stake bets to do so and we can't accurately predict how much one would have to play to win such a prize. These incentives are meant for you to play more and lose more.