Currently the max payout per a 24 hour period (based on start of day to end of day in UTC) is .1 steem. this should be fine since one of the highest scores i have seen is around 100k.
You can play as often as possible, but the payouts will cap at .1 steem. I have been playing around with making it more secure, I am sure I will keep changing stuff around.
Have an upvote instead! Glad you enjoy the game.