Gamble for free? How are you going to gamble for free ?
Haha gambling for free, this is only applicable if you'll gamble with casino's play money.Gambling is risking your own money and if you are referring gamble for free as in faucet money thats not even a gamble. If you are not risking anything, thats bullshit for me. You only have very small chance to win but that is enough I think because it is gambling afterall isnt it
Faucet is one of it and this is what I've done before but giving this idea to the gamblers that wants to give up gambling, you'll encourage them instead of quitting. 
Nothing is free in this world as rightly being said. Even if you think you are getting it free their would be some condition apply scenario and thus you will fall in a trap and that free money will become the debt as you will play more to get more money and may end up in a losses .
It is indeed free, but it does have an interval after you claimed once,, and using free satoshi in a certain gambling site is good if you are just playing gambling just for time, though it will not last that long because that is only a small amount of money, and making profits out of it is so hard since the house always win. Using that is a safe way on how you are going to explore the game you wanted to play in gambling before you use your money on betting.