BitzFree.com can't be a scam as you don't invest any money into it. Also site structure is NOTHING like BTCflow. Its is a hacking game but also a clicking game where need to up your GHS when mining, up your bonus on buying when buying GHS or if you want other options, overclock, double mining with a hacking console which you can use.
I am nothing to do with BitzFree, I just really love the site just 1. Can't be scam if you cannot give money to it. and 2. Site is NOTHING like BTCflow in structure or design

May still collapse tomorrow. Just saying
Tom
I'll go ahead and do some more research, got a few complaints and from what I saw it was the same concept as BTC flow except using GHS instead of BTC.
Like Egg miner.