Big Bass Vegas Double Down Deluxe
Pragmatic Play
A roomier Big Bass that rewards patience. Our finished rounds paid 32.5x to 103.5x at £1.20, and the best one was past 166x when we had to leave it, helped by five fish paying their combined values as a line win. The 4,000x fish rolled by more than once but was never collected.
Two spins into our free spins, a fisherman dropped onto the fifth reel and hauled in £114 from four fish in one go. That was 95 times our £1.20 stake, landed 183 spins into the session, and it carried the round to £124.20 by the final spin. We played the free Bigger Bass Bonanza demo above in Pragmatic’s UK version. We read every figure below from our own screens or the in-game rules.

The bigger reel set is the first thing you notice. Five reels now run four symbols deep, so twenty positions fill on every spin instead of fifteen, and the fish sit on yellow and pink tiles with their cash value printed along the bottom edge, big enough to tot up before he arrives.
The UK build has no autoplay or turbo. A base spin settled in about four seconds, and ten free spins took a little over a minute, banners included.
Our demo’s rules list a theoretical return of 96.71% and a medium volatility rating, which the game describes as a steady payer whose wins can run anywhere from low to very high. Our rounds matched that. The ones we saw through paid 32.5x, 91x and 103.5x the stake, and another had climbed past 166x with eight spins still to come.
The top prize is 4,000 times your bet. Reach it inside a free spins round, and the round stops on the spot, pays the capped amount and throws away whatever spins were left.
The game has 12 fixed paylines, each read from the leftmost reel across. The rules list stakes from 12p up to £240 a spin, though no UK casino may take a slot stake above £5, and the ceiling drops to £2 for anyone under 25. Pragmatic’s international build, the one our hub embeds, adds Autoplay and a hold-to-turbo option. Neither build sells a way into the bonus.
Set at £1.20, the default, the rules print every pay in pounds. Each cell shows that figure and the bet multiple it represents.
| Symbol | Five on a line | Four on a line | Three on a line | Two on a line |
|---|---|---|---|---|
| Speedboat | £240 at 200x | £24 at 20x | £6 at 5x | 60p at 0.5x |
| Rod and reel | £120 at 100x | £18 at 15x | £3.60 at 3x | Nothing |
| Fishing lure | £60 at 50x | £12 at 10x | £2.40 at 2x | Nothing |
| Tackle box | £60 at 50x | £12 at 10x | £2.40 at 2x | Nothing |
| Fish | Their values added together | £6 at 5x | £1.20 at 1x | Nothing |
| A / K / Q / J / 10 | £12 at 10x | £3 at 2.5x | 60p at 0.5x | Nothing |

The fish row is the odd one out. Five fish on a payline don’t pay a fixed prize, they pay whatever cash values they’re carrying, added up. We saw this in the base game when five fish lined up on line 4 and paid £22.80, exactly the sum of their tags.

Land three scatters for 10 free spins, four for 15 or five for 20. Every fish takes a random value on each spin, from 2x to 4,000x the total bet, and during the round any fisherman that lands collects every one in view. The fisherman is the wild; he only appears once the free spins begin, and he substitutes for every symbol bar the scatter.
A strip across the top keeps count of fishermen. Every fourth adds 10 spins and raises the fish’s value, doubling it after the first retrigger, tripling it after the second, and multiplying it by ten after the third. No retrigger comes after that. When only one fisherman shows at the end of a free spin, fish can also be dropped onto the reels at random.
Our best round came from a different direction. With two spins left, the fourth fisherman arrived with no fish on the screen, so he collected nothing but still lit the x2 stage.

Then, on the very last spin of the batch, five fish landed across the top row and paid £86.40 as a line win. An Epic Win banner started its count below £6, and the round jumped from £65.40 to £151.80 before the doubled spins had even started.

The x2 stage had reached £199.80 with eight spins to go when our session ended, so we never saw that round’s final total.
A later round did run to the finish after a retrigger. It took 304 spins to arrive, sat on £84 when the fourth fisherman came in, and a speedboat raced across the screen to open the x2 spins. Those added £25.20 more, and the round closed on £109.20.

Waits for the trigger ran from 38 spins to 304 across our six bonus rounds, and the smallest round we saw finish paid £39. We also saw £4,800 fish, the 4,000x value, roll past on the spinning reels, but never with a fisherman there to collect.
Our Big Bass Bonanza demo page covers the original, and both share an RTP of 96.71% plus the same 2x, 3x, and 10x retrigger ladder. The differences are all about size.
Two other larger editions appear on Pragmatic’s site. Bigger Bass Splash lists a 96.50% RTP, fish worth up to 5,000x and as many as five modifiers before the feature starts, much like our Big Bass Splash free demo. Bigger Bass Blizzard Christmas Catch gives the set a winter theme, with snowmobiles among the symbols, and lists 96.08%.
Kitty Bingo has it in the Pragmatic Play row of its slots lobby, where the tile carries a Drops & Wins badge. It appeared in the popular rows at two of the 16 lobbies we reviewed: Kitty and its twin, Lucky Pants. Our Kitty Bingo review covers that site in full.
If you’d like more places to play, have a look at the newest slot sites on our list. Or stay with the free games in our slot demo collection.