Is there a privacy based Ethereum-style coin?

[Thinvestor]

I figure that the stealth coin market has been huge in following what bitcoin did.

Is there a privacy based coin that runs smart contracts?

I see Verge is looking to install RSK smart contracts, which I think could be HUGE and am seriously looking at investing a fair amount of cheddar into that coin, but before I do, I wondered if that is a dark-ethereum?

If no-one has made a stealth style coin that can run smart contracts yet, then I will be the first to invest in one when it comes along, hopefully it will be Verge, because thats cheap as anything at the minute.

Thanks for your help in advance.