I think now I know how is it called - it is a parimutuel betting.
OneHash - they are not enough repetitive bets on the same contracts (for Bitcoin 1 per hour) and I couldn't find information how to compute time bonus. Even if I find some kind a strategy, it seems to bo complicated to write bots.
gogo-options - As far as I can see it is still playing against the market.
It is unbeliavable for me why such clear mutual betting like it was on btc-e doesn't exist elsewhere. No risk for the market and many people (like me) who prefers to play against others.
I can understood about betting in your mind, that is trading not gambling, it is something different between trading and gambling
you can trade on bitcoins to fiat money on Kraken, bitstamp, huobi, okcoin, bitfinex, coinbase and other markets.
If you want trade altcoins c-cex, youbit and bittrex will be good markets to making profit and for get fun and entertainment
you can play gambling on bitdouble.io .