What game was it? Did you try to google other user testimonials? You can typically find out which ones are scams by simply Googling.
It was a simple betting game where we have to just guess the next number will be greater than 5000 or not.
It was a game in this (freebitco.in) website... dont play it is just fake.
As far as I know freebitcoin is legit site.
What withdrawal option have you used? If it was auto withdraw then you will have to wait for your coins because they are releasing them every Sunday. Maybe this is problem.