Play and earn bitcoin
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Android games to earn some bitcoin!
https://play.google.com/store/apps/details?id=com.bling.bitcoinpop
https://play.google.com/store/apps/details?id=app.getloaded.bitcoinblast
https://play.google.com/store/apps/details?id=com.bling.bitcoinblocks
https://play.google.com/store/apps/details?id=com.bling.bitcoinfoodfight
https://play.google.com/store/apps/details?id=com.playday.bitcoinsolitaire
You can log in to all games with facebook or google account.
In each of these you can play 15 games a day that rewards you 2-3 satoshi each. With all of the games 300-400 satoshi win is possible daily
No referral system exists with the games, you have to watch a video ad after every game. Withdrawal is without fee to your coinbase account (I tested it work)