You can pick a block for 1k and a max of 10k after 7 days a winning block is chosen (from like 30 blocks) you and all players get 70% of the money that was put in the lotery.
So say I chose dirt and set 5k for it.
Dirt loses I lose my 5k
Dirt wins I and 10 other who also chose dirt get 100k x 0.7 ÷ 11= (lazy to calculate) around 5k each.
Ofc this is only 100k the stakes could ne way higher if you don't hold the loterry very often and maybe make a minimum amount of money that needs to be spent on it in order for the lottery to run?
Idk I typed this real quick just to give an idea