Curious Machine is a 30 line BetSoft slot paying up to $7500 per spin. This inventor-themed casino game includes many great aspects like free spin rounds, instant wins, a double down option and a scatter second-screen bonus.
The rules of Curious Machine are quite basic and straightforward. You should get the jist of it after a dozen spins or so. Try it for yourself at Vegas Crest [read review] and win real money!