Fun game for a lottery, honest drawing, low house edge and getting to pick your own odds (max variance is the best tactic when playing a game that is inherently -EV). I never play real lotteries because of all the very low prices I don't want to win (next to the negative EV thing which would stop me from playing more than once a year even with max variance).

You should increase your price pool though, at 65k multiplier you are only allowed to wager 0.0013 BTC lol.