"You've struck GOLD! BLACK GOLD!" Join Ol' Bill, a Texas billionaire with a special gift for sniffing out large deposits of oil as you play this classic Slots3™ title. Bringing the rustic beauty of the Texas prairie to you in true 3D, BLACK GOLD will take you on an adventure where the potential for winnings is as endless as the oil beneath the earth. Icons you will find in this gold-digging themed slot machine game include cowboy, horse, barrels, cowboy hat, oil pipe, oil rig wheel, wall tusk and "do not trespass" sign. Receive 3 or more "Barn" symbols anywhere on the reels to trigger the "Nighttime free spins mode." During free spins, the "Barn" symbol is wild and multiplies any win it is involved in.
Multiplier increases each time the symbol occurs successfully in a win. Earn up to 10x wild wins but please note that response are not triggered during free spins mode. Receive 3 or more "Drill" icons anywhere on the reels to trigger the "Drilling for oil click me" feature. Choose one of the 3 oil drills and see what kind of oil win you will receive. Payouts are awarded from the left to right reel. All line pays are multiplied by your line bet. You can bet on up to 30 active pay lines and can wager from 1 to 5 coins with a choice of nominal values that vary from 0.01, 0.02, 0.03, 0.04, 0.05, 0.10, 0.20, 0.25, 0.50 up to 1.
Receive the oil pump symbol on reels 1, 2, and 5 to enter the bonus round. During the bonus round, you will choose whether the next number will be higher or lower than the number currently shown on the screen. 4 hits or 4 misses ends the bonus round feature. If you are ready to earn even more credits each time you win, this is the game for you. Each time you achieve a winning combination on the reels, the prize will be paid out, and the middle reel will be responded for an instant change to earn even more wins. Each time the reel re-spins, your multiplier in the upper right corner will increase. Earn up to 5x on any wins that occur when you get a middle reel re-spin. Re-spins will continue to occur as long as a win happens on that reel. Re-spins are not triggered during free spins mode.