Oil Mania in Demo Mode

The wonderful Oil Mania slot online comes with 25 pay lines, 3 rows, and 5 reels. Producing oil in this online casino slot by NextGen Gaming you can get really great winnings!

Gameplay The game contains one additional bonus feature which will surely entertain you and help you to obtain really big prizes. The Oil Tycoon is responsible for the Upwild feature. And once one, two or three Oil Tycoon symbols show up anywhere on the reels two, three and four this awesome feature will be launched. Three free games will be granted. The oil well under the reel with the Oil Tycoon begins to throw up oil, creating the Wild symbols on the rows one by one with each free spin. On the third spin, the entire reels becomes Wild. The Wild symbols substitute for all game symbols. If the Oil Tycoon shows up during the feature, the number of the free games will be reset to three with the new Upwild growing from the oil well. This slot also contains the risky, but the useful mini game which can help you to double or quadruple your winnings. Gamble on the red or black color of the card or its suit and if your gamble is right your prize will be increased. Once you make the wrong choice you will lose the credits for the current spin round.

Review The oil business can be very profitable if you find a good oil well. So, try to play the role of an oil magnate in this game to earn credits. If you are keen on slots with bonus spins you may like Oil Mania slot too, playing it at SlotsUp.com for free! If you like to play slots machines with free spins and free video slot without downloads; play a big variety of NextGen Gaming slots for free, no download or registration is required for it! You can also find a lot of slot games for mobiles, including Oil Mania slot at Slots Up if you prefer to play such games from your mobile device!