No, I haven't heard of this one, but I look through it. It will not be good as more contracts are building up, & this site look like makeBTC.com to me. Because the contract amount is going to increase more & more.
I know this, because there is a free version of this available for us to try & play. But it might take a while for new members to save up their free BTC to invest in. U can come and play 2 if you haven't yet. Have you heard of
http://doublebitcoins.com/ref/201/? On this BTC faucet, if U mouse over the link GAME, look for SUPER FAUCET. Sorry, I don't know how to do screenshot yet, & pasted the image onto here.
Take a good look at that webpage, especially the table on the right hand side of the page, notice that the amount get larger and larger each time, so I think the same things will happen to
http://btcontracts.org & makeBTC.com. I think we can easily imagine what will happen about the BTC amount after every BTC distribution. It will get bigger & bigger, like the "rolling snowball" effect.
I believed
https://btc-arbs.com/referral/qwiner is a much safer BTC investment.
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