Great Blue has been a popular video slot for long at Playtech powered online casinos. The leading games supplier has recently reintroduced this slot game by adding a four-tier progressive jackpot to it. This has given the video slot a new lease of life and Great Blue Jackpot is drawing high traffic at online casinos like Mansion Casino.

Visually, Great Blue Jackpot is identical to the earlier slot game. The reels are set at the bottom of the ocean bed. The same set of symbols has been used. The whale is the wild symbol. It appears stacked on the reels and has a 2x multiplier property. It also awards the highest line payouts. Five whale symbols on an active payline award 10,000 times the line bet. The other high paying symbols are shark, turtle, fish, seahorse and starfish. The low paying symbols are the usual playing card icons.

The pearl in a shell is the scatter symbol. Two or more of these anywhere on the reels award payouts multiplied by the total bet. Three or more scatter symbols also trigger the Pearl Bonus feature. You are initially awarded 8 free spins with a 2x multiplier. You go to the second screen where you pick two out of five shells for additional free spins and multipliers. You can win a total of 33 free spins with a maximum multiplier of 15x. Three scatter symbols in this feature award another 15 free spins with the same multiplier.

The progressive jackpot is the new feature in this video slot. The jackpot game is triggered randomly. It can be triggered in any spin, with a bet of any amount and even when there is no payout. However, bets of larger amounts increase the chance of triggering the jackpot game. Once this game is triggered you are assured of winning one of the four progressive jackpots. 20 coins are displayed on the second screen and you keep picking them in any order that you like. Each coin will reveal one of four sea creatures, which are whale, shark, turtle and fish. Once you get three matching icons of the same animal, you will be awarded the progressive jackpot corresponding to it. The whale progressive jackpot is the largest followed by shark, turtle and fish.

Great Blue Jackpot is a 5x3 video slot with 25 selectable paylines. The maximum total bet per spin is $2.50, which means that you bet very little in the hope of winning a huge payout.