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.