So The Person in first place gets a Personal Code That Unlocks special features in my game that im working on and gets  his/her name in the game, on the titlescreen and in the credits and gets a Coupon code for 99% off in my merch store (i tried to go 100 but it wouldn't let me)

The Person in second place gets their name in the credits and a 20% off coupon in my store

The Person in third place gets 5% off coupon in my store