Looking for a unity based blockchain game

1) Game will be racing game each race minimum 8 participant
2) 5 different stages, player can chose any stage they want to play
3) each stage have different token cost
stage 1- 5 token( exact value will be told)
stage 2- 20 token( exact value will be told)
stage 3- 50 token( exact value will be told)
stage 4- 100 token( exact value will be told)
stage 5- 150 token( exact value will be told)

4) all player pay this much token from balance when the start the race
5) After race finishes the winner get 50% of all the collection 2nd one get 30% of all the collection and 3rd one get 20% of all the collection
6) API need to be made and blockchain part needed to be handled

while claiming user claim token from game we take 10% claim fee which will go to admin wallet
we will be modifying speed racing base game according to the requirements
Game along with blockchain integration to be ready in 10 days