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.
It is legit but you will be earning so low in this site and you will take I think months to withdraw from this site.
You will be wasting your time in this kinds of site you'd better look for better choices out there just keep on reading.