I think that's not how this game works. It was not like a money doubler scheme but anyone can donate on the address and once they reach a certain amount it will then be send randomly to another bitcoin address. The ones that receives it is going to be lucky because they just got free money but that is if the address is valid and it's actively owned by someone else.
This is what he is trying to do like making fools of people pretending it's fun game and you could have a chance to win the amount but in reality he is the one who will be scamming people like you with this so called donate bitcoin to @OP game so if you are ignoring all the post above and focusing on his post only then try it once and tell us how much you donated/lost to this one.